顔写真

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Hideki Ochiai
落合 秀樹
Hideki Ochiai
落合 秀樹
Institutional repository
Graduate School of Engineering　Division of Electrical, Electronic and Information Engineering, Professor
ochiai comm.eng.osaka-u.ac.jp

keyword Communication Theory，Wireless Communications

Institutional repository

Research History 19

  1. 2024/04 - Present
    Osaka University　Graduate School of Engineering　Professor

  2. 2015/04 - 2024/03
    Yokohama National University　Faculty of Engineering Division of Intelligent Systems Engineering　Professor

  3. 2019/09 - 2020/03
    Princeton University　Visiting Fellow

  4. 2019/03 - 2019/08
    University of Waterloo　Visiting Professor

  5. 2007/04 - 2015/03
    Yokohama National University　Faculty of Engineering Division of Intelligent Systems Engineering　Associate Professor

  6. 2005/04 - 2007/03
    Yokohama National University　Faculty of Engineering Division of Intelligent Systems Engineering　Associate Professor

  7. 2003/10 - 2005/03
    Yokohama National University　Faculty of Engineering Division of Intelligent Systems Engineering　Lecturer

  8. 2003/10 - 2004/09
    ハーバード大学　電気工学科　研究員

  9. 2003/04 - 2003/09
    Yokohama National University　Faculty of Engineering Division of Intelligent Systems Engineering　Research Assistant

  10. 2001/04 - 2003/03
    The University of Electro-Communications　Department of Information and Communication Engineering　Research Assistant

  11. 1999/01 - 2001/03
    Japan Society for the Promotion of Science　Special researcher of the Japan Society for the Promotion of Science

  12. 2018/04 - 2024/03
    Yokohama National University　Graduate school of Engineering Science Department of Mathematics, Physics, Electrical Engineering and Computer Science　Professor

  13. 2015/04 - 2024/03
    Yokohama National University　Graduate School of Engineering Department o Physics, Electrical and Computer Engineering　Professor

  14. 2015/04 - 2024/03
    Yokohama National University　College of Engineering Science Department of Mathematics, Physics, Electrical Engineering and Computer Science　Professor

  15. 2011/04 - 2015/03
    Yokohama National University　College of Engineering Science Department of Mathematics, Physics, Electrical Engineering and Computer Science　Associate Professor

  16. 2007/04 - 2015/03
    Yokohama National University　Graduate School of Engineering Department o Physics, Electrical and Computer Engineering　Associate Professor

  17. 2005/04 - 2007/03
    Yokohama National University　Graduate School of Engineering Department o Physics, Electrical and Computer Engineering　Associate Professor

  18. 2003/10 - 2005/03
    Yokohama National University　Graduate School of Engineering Department o Physics, Electrical and Computer Engineering　Lecturer

  19. 2003/04 - 2003/09
    Yokohama National University　Graduate School of Engineering Department o Physics, Electrical and Computer Engineering　Research Assistant

Education 4

  1. The University of Tokyo　Graduate School, Division of Engineering

    1998/04 - 2001/03

  2. The University of Tokyo　Graduate School, Division of Engineering

    1996/04 - 1998/03

  3. Osaka University　Faculty of Engineering

    1991/04 - 1996/03

  4. University of California, Los Angels　Department of Electrical Engineering

    1994/08 - 1995/06

Committee Memberships 2

  1. IEICE Wideband System Technical Committee　Chair　Academic society

    2024/06 - 2026/05

  2. IEEE VTC 2018 Spring Technical Program Committee　Vice-Chair　Other

    2018 - 2018

Professional Memberships 2

  1. IEEE

  2. IEICE

Research Areas 2

  1. Informatics / Information networks /

  2. Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Communication and network engineering / Information and Communication Engineering

Awards 7

  1. 文部科学大臣表彰 科学技術賞（研究部門）

    文部科学省　2024/04

  2. IEEE Fellow

    落合秀樹　IEEE　2023/01

  3. KDDI財団賞

    落合秀樹　KDDI財団　2014/03

  4. 船井情報科学奨励賞

    2007/04

  5. 安藤博記念学術奨励賞

    2006/06

  6. エリクソン・ヤング・サイエンティスト・アワード

    2000

  7. テレコムシステム技術学生賞

    1999

Papers 255

  1. A New Polar Code Design Based on Reciprocal Channel Approximation

    Hideki Ochiai, Kosuke Ikeya, Patrick Mitran

    IEEE Transactions on Communications　Vol. 71　No. 2　p. 631-643　2023/02　Research paper (scientific journal)

  2. Single-Carrier Transmission for Delay and Doppler Shifts

    Yuto Hama, Hideki Ochiai

    IEEE Transactions on Wireless Communications　2025　Research paper (scientific journal)

  3. EXIT Chart Analysis of Expectation Propagation-Based Iterative Detection and Decoding

    Fuga Kobayashi, Takumi Takahashi, Shinsuke Ibi, Hideki Ochiai

    IEEE Open Journal of the Communications Society　2025　Research paper (scientific journal)

  4. Quantum Algorithms for the Physical Layer: Potential Applications to Physical Layer Security

    Toshiki Matsumine, Hideki Ochiai, Junji Shikata

    IEEE Access　2025　Research paper (scientific journal)

  5. Outer Bounds on the CEO Problem With Privacy Constraints

    Vamoua Yachongka, Hideki Yagi, Hideki Ochiai

    IEEE Transactions on Information Forensics and Security　2025　Research paper (scientific journal)

  6. Peak Power Properties of Band-Limited Signals: With Pulse Shaping or Windowing

    Hideki Ochiai

    IEEE Transactions on Vehicular Technology　2024/10　Research paper (scientific journal)

  7. Can Spatial Modulation Outperform Spatial Multiplexing in Practical Band-Limited Coded Systems?

    Yuto Hama, Hideki Ochiai

    IEEE Communications Magazine　Vol. 62　No. 5　p. 128-133　2024/05　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

  8. Recent Advances in Deep Learning for Channel Coding: A Survey

    Toshiki Matsumine, Hideki Ochiai

    IEEE Open Journal of the Communications Society　2024　Research paper (scientific journal)

  9. A New Physical Layer Security Scheme Based on Adaptive Bit Channel Selection for Polar-Coded OFDM

    Yuki Kuraya, Hideki Ochiai

    IEEE Open Journal of Vehicular Technology　2024　Research paper (scientific journal)

  10. Design of Low-Complexity Coded Modulation Employing High-Order QAM With Systematic Geometric Constellation Shaping

    Eito Kurihara, Hideki Ochiai

    IEEE Open Journal of the Communications Society　2024　Research paper (scientific journal)

  11. Sparse Bayesian Learning Using Complex t-Prior for Beam-Domain Massive MIMO Channel Estimation

    Kengo Furuta, Takumi Takahashi, Hideki Ochiai

    IEEE Open Journal of the Communications Society　p. 1-1　2024　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

  12. An Efficient Information Reconciliation Scheme via Partial Encoding for Physical Layer Secret Key Generation

    Toshiki Matsumine, Hideki Ochiai, Junji Shikata

    IEEE Communications Letters　2024　Research paper (scientific journal)

  13. A Flexible Polar Decoding Architecture With Adjustable Latency and Reliability

    Shintaro Fujiwara, Hideki Ochiai

    IEEE Open Journal of the Communications Society　2024　Research paper (scientific journal)

  14. A Data-Driven Analysis of Secret Key Rate for Physical Layer Secret Key Generation From Wireless Channels

    Toshiki Matsumine, Hideki Ochiai, Junji Shikata

    IEEE Communications Letters　Vol. 27　No. 12　p. 3166-3170　2023/12　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

  15. On the Achievable Spectral Efficiency of Non-Orthogonal Frequency Division Multiplexing

    Yuto Hama, Hideki Ochiai

    IEEE Transactions on Communications　Vol. 71　No. 11　p. 6246-6257　2023/11　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

  16. Time-Frequency Domain Non-Orthogonal Multiple Access for Power Efficient Communications

    Yuto Hama, Hideki Ochiai

    IEEE Transactions on Wireless Communications　Vol. 22　No. 9　p. 5711-5724　2023/09　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

  17. STBC-Enabled Secure Wireless Transmission With Cooperative Devices Under Imperfect CSI of Destination

    Tianji Shen, Yuto Hama, Hideki Ochiai

    IEEE Access　Vol. 11　p. 46804-46819　2023　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

  18. Collabo: A Collaborative Machine Learning Model and Its Application to the Security of Heterogeneous Medical Data in an IoT Network

    Zie Eya Ekolle, Hideki Ochiai, Ryuji Kohno

    IEEE Access　2023　Research paper (scientific journal)

  19. Key Agreement Using Physical Identifiers for Degraded and Less Noisy Authentication Channels

    Vamoua Yachongka, Hideki Yagi, Hideki Ochiai

    IEEE Transactions on Information Forensics and Security　p. 232-237　2023　Research paper (scientific journal)

  20. On Spectral Efficiency of OFDM Signals Based on Windowing

    OCHIAI Hideki

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences　Vol. advpub　No. 0　2022/12/19　Research paper (scientific journal)

    Publisher: 一般社団法人 電子情報通信学会

  21. On Rate-Splitting With Non-Unique Decoding in Multi-Cell Massive MIMO Systems

    Meysam Shahrbaf Motlagh, Subhajit Majhi, Patrick Mitran, Hideki Ochiai

    IEEE Transactions on Communications　Vol. 70　No. 9　p. 5929-5945　2022/09　Research paper (scientific journal)

  22. Binary-Input Ternary-Output Turbo Codes for Ternary PSK Transmission

    Yuto Hama, Hideki Ochiai

    IEEE Communications Letters　Vol. 26　No. 9　p. 1974-1978　2022/09　Research paper (scientific journal)

  23. Matched-Filter Detector With Quadrature Interference Cancellation for Coded Uplink Multiuser MIMO Systems With Massive IoT Devices

    Yuto Hama, Hideki Ochiai

    IEEE Transactions on Wireless Communications　Vol. 21　No. 6　p. 4025-4038　2022/06　Research paper (scientific journal)

    Publisher: IEEE

  24. Security Gap Improvement of BICM Systems Through Bit-Labeling Optimization for the Gaussian Wiretap Channel

    Toshiki Matsumine, Hideki Ochiai, Junji Shikata

    IEEE Access　Vol. 10　p. 47805-47813　2022/05　Research paper (scientific journal)

  25. Maximum-Likelihood-Based Performance Enhancement of Clipped and Filtered OFDM Systems With Clipping Noise Cancellation

    Ying Sun, Hideki Ochiai

    IEEE Wireless Communications Letters　Vol. 11　No. 3　p. 448-452　2022/03　Research paper (scientific journal)

  26. A Low-Complexity Probabilistic Amplitude Shaping With Short Linear Block Codes

    Toshiki Matsumine, Toshiaki Koike-Akino, Hideki Ochiai

    IEEE Transactions on Communications　Vol. 69　No. 12　p. 7923-7933　2021/12　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  27. Performance Analysis and Comparison of Clipped and Filtered OFDM Systems With Iterative Distortion Recovery Techniques

    Ying Sun, Hideki Ochiai

    IEEE Transactions on Wireless Communications　Vol. 20　No. 11　p. 7389-7403　2021/11　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  28. Performance Analysis of Wireless Steganography based on OFDM and DFT-s-OFDM Signals over Frequency-Selective Rayleigh Fading Channels

    Hama Yuto, Ochiai Hideki, Shikata Junji

    24TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS (WPMC 2021): PAVING THE WAY FOR DIGITAL AND WIRELESS TRANSFORMATION　2021　Research paper (scientific journal)

  29. Capacity-Approaching Polar Codes With Long Codewords and Successive Cancellation Decoding Based on Improved Gaussian Approximation

    Hideki Ochiai, Patrick Mitran, H. Vincent Poor

    IEEE Transactions on Communications　Vol. 69　No. 1　p. 31-43　2021/01　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  30. A UAV-Enabled Wireless Powered Sensor Network Based on NOMA and Cooperative Relaying With Altitude Optimization

    Tianji Shen, Hideki Ochiai

    IEEE Open Journal of the Communications Society　Vol. 2　p. 21-34　2021　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  31. A Physical-Layer Security Based on Wireless Steganography Through OFDM and DFT-Precoded OFDM Signals

    Ryohei Yamaguchi, Hideki Ochiai, Junji Shikata

    2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)　2020/06/30　Research paper (international conference proceedings)

    Publisher: IEEE

  32. On Design of Multilevel Coded Modulation Based on CRC-Concatenated Polar Codes

    Yuki Yajima, Hideki Ochiai

    2020 IEEE 17TH ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC 2020)　2020/01　Research paper (scientific journal)

  33. Performance of Coded MIMO Spatial Modulation with Scaling Matched-Filter Detector

    Yuto Hama, Hideki Ochiai

    2020 IEEE Global Communications Conference (GLOBECOM)　2020　Research paper (scientific journal)

    Publisher: IEEE

  34. A Novel PAPR Reduction Scheme for Polar-Coded OFDM Systems

    Toshiki Matsumine, Hideki Ochiai

    IEEE Communications Letters　Vol. 23　No. 12　p. 2372-2375　2019/12　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  35. A UAV-Aided Selective Relaying with Cooperative Jammers for Secure Wireless Networks over Rician Fading Channels

    Shen Tianji, Hideki Ochiai

    IEEE 90th Vehicular Technology Conference (VTC2019-Fall)　2019/09　Research paper (international conference proceedings)

  36. PAPR Reduction of OFDM With Trellis Shaping Based on ${p}$ -Norm Minimization

    Shun Takizawa, Hideki Ochiai

    IEEE Wireless Communications Letters　Vol. 8　No. 4　p. 988-991　2019/08　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  37. Performance Analysis of Matched-Filter Detector for MIMO Spatial Multiplexing Over Rayleigh Fading Channels With Imperfect Channel Estimation

    Yuto Hama, Hideki Ochiai

    IEEE Transactions on Communications　Vol. 67　No. 5　p. 3220-3233　2019/05　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  38. Performance of Polar Coded MIMO Systems with Matched-Filter Detector and Interference Cancellation

    Hama Yuto, Ochiai Hideki

    2019 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)　2019　Research paper (international conference proceedings)

  39. A UAV-Aided Data Collection for Wireless Powered Sensor Network over Rician Fading Channels

    Shen Tianji, Ochiai Hideki

    2019 16TH IEEE ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC)　2019　Research paper (scientific journal)

  40. A UAV-Aided Data Collection for Wireless Powered Sensor Network over Rician Fading Channels

    Tianji Shen, Hideki Ochiai

    2019 16th IEEE Annual Consumer Communications & Networking Conference (CCNC)　2019/01　Research paper (international conference proceedings)

  41. Trellis shaping using clipping-based metric with improved PAPR reduction for OFDM signals

    Shun Takizawa, Hideki Ochiai

    Radio & Wireless Symposium (RWS2019)　p. 517-520　2019/01　Research paper (international conference proceedings)

  42. Construction D Lattice Decoding and Its Application to BCH Code Lattices

    Toshiki Matsumine, Brian M. Kurkoski, Hideki Ochiai

    2018 IEEE Global Communications Conference (GLOBECOM)　2018/12　Research paper (international conference proceedings)

  43. Capacity-Approaching Non-Binary Turbo Codes: A Hybrid Design Based on EXIT Charts and Union Bounds

    Toshiki Matsumine, Hideki Ochiai

    IEEE Access　Vol. 6　p. 70952-70963　2018/11　Research paper (scientific journal)

    Publisher: IEEE

  44. A Coded MIMO Spatial Multiplexing Approach with Low-Complexity Matched-Filter Detector and CRC-Assisted Interference Cancellation

    Masukawa Kentaro, Ochiai Hideki

    2018 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2018)　p. 541-546　2018/10　Research paper (international conference proceedings)

  45. Exploiting variable-length padding bits for decoder performance improvement with its application to compressed video transmission

    Yoshito Watanabe, Hideki Ochiai

    Signal Processing: Image Communication　Vol. 66　p. 66-76　2018/08/01　Research paper (scientific journal)

    Publisher: Elsevier B.V.

  46. Decision Region Optimization and Metric-Based Compensation of Memoryless Nonlinearity for APSK Systems

    Daiki Yoda, Hideki Ochiai

    IEEE Transactions on Broadcasting　Vol. 64　No. 2　p. 281-292　2018/06/01　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  47. Performance Comparison of Low-Complexity MIMO System with Matched-Filter Detector and Interference Cancellation

    Yuto Hama, Hideki Ochiai

    2018 25th International Conference on Telecommunications (ICT)　2018/06　Research paper (international conference proceedings)

    Publisher: IEEE

  48. A Design of Non-Binary Turbo Codes over Finite Fields Based on Gaussian Approximation and Union Bounds

    Toshiki Matsumine, Hideki Ochiai

    2018 IEEE 87th Vehicular Technology Conference (VTC Spring)　2018/06　Research paper (international conference proceedings)

    Publisher: IEEE

  49. Software Defined Radio Implementation of SOCC-Based OFDM System with Low PAPR

    Tomoki Yokokawa, Hideki Ochiai

    2018 IEEE 87th Vehicular Technology Conference (VTC Spring)　2018/06　Research paper (international conference proceedings)

    Publisher: IEEE

  50. Decision Region Optimization and Metric-Based Compensation of Memoryless Nonlinearity for APSK Systems

    Daiki Yoda, Hideki Ochiai

    IEEE Transactions on Broadcasting　Vol. 64　No. 2　p. 281-292　2018/06　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers ({IEEE})

  51. Uplink Multiple Access Based on MIMO-OFDM with Adaptive Super-Orthogonal Convolutional Codes for Ultra Reliable and Low Latency Communications

    Yuta Hori, Hideki Ochiai

    2018 IEEE International Conference on Communications Workshops (ICC Workshops)　2018/05　Research paper (international conference proceedings)

    Publisher: IEEE

  52. A New Uplink Multiple Access Based on OFDM With Low PAPR, Low Latency, and High Reliability

    Yuta Hori, Hideki Ochiai

    IEEE Transactions on Communications　Vol. 66　No. 5　p. 1996-2008　2018/05/01　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  53. A Serial Concatenation of Binary-Input Nonbinary-Output Convolutional Code and Recursive Convolutional Lattice Code

    Toshiki Matsumine, Hideki Ochiai

    IEEE Access　Vol. 6　p. 24809-24817　2018/04/27　Research paper (scientific journal)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  54. A new low-complexity trellis shaping design based on clipping for PAPR reduction in BICM-OFDM system

    Junya Watanabe, Hideki Ochiai

    2018 IEEE Wireless Communications and Networking Conference (WCNC)　2018/04　Research paper (international conference proceedings)

    Publisher: IEEE

  55. A new turbo coded modulation approach exploiting non-binary field

    Toshiki Matsumine, Hideki Ochiai

    IEEE Radio and Wireless Symposium, RWS　Vol. 2018-　p. 72-75　2018/02/28　Research paper (international conference proceedings)

    Publisher: IEEE Computer Society

  56. On throughput optimization for coded OFDM with variable cyclic prefix length

    Masaya Arakawa, Hideki Ochiai

    International Symposium on Wireless Personal Multimedia Communications, WPMC　Vol. 2017-　p. 46-51　2018/02/22　Research paper (international conference proceedings)

    Publisher: IEEE Computer Society

  57. Triple parallel concatenated trellis coded modulation

    Toshiki Matsumine, Hideki Ochiai

    IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC　Vol. 2017-　p. 1-5　2018/02/14　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  58. Fourth-order moment analysis of filtered single-carrier and OFDM signals

    Hideki Ochiai

    IEEE Vehicular Technology Conference　Vol. 2017-　p. 1-5　2018/02/08　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  59. Performance Analysis of Matched Filter Detector for MIMO Systems in Rayleigh Fading Channels

    Yuto Hama, Hideki Ochiai

    2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings　Vol. 2018-　p. 1-6　2018/01/10　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  60. Performance Analysis of CRC Codes for Systematic and Nonsystematic Polar Codes with List Decoding

    Takumi Murata, Hideki Ochiai

    Wireless Communications and Mobile Computing　Vol. 2018　2018　Research paper (scientific journal)

    Publisher: Hindawi Limited

  61. An adaptive MIMO-BICM system with CRC-assisted two-stage interference cancellation

    Shinya Hagihara, Hideki Ochiai

    IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC　Vol. 2017-　p. 1-5　2017/12/19　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  62. An adaptive MIMO-BICM system with CRC-assisted two-stage interference cancellation

    Shinya Hagihara, Hideki Ochiai

    IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC　Vol. 2017-　p. 1-5　2017/12/19　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  63. On throughput optimization for coded OFDM with variable cyclic prefix length

    Masaya Arakawa, Hideki Ochiai

    Wireless Personal Multimedia Communications (WPMC), 2017 20th International Symposium on　2017/12　Research paper (international conference proceedings)

    Publisher: IEEE

  64. An Efficient Time Switching Protocol with Adaptive Power Splitting for Wireless Energy Harvesting Relay Networks

    Vikash Singh, Hideki Ochiai

    IEEE Vehicular Technology Conference　Vol. 2017-　2017/11/14　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  65. An Efficient Time Switching Protocol with Adaptive Power Splitting for Wireless Energy Harvesting Relay Networks

    Vikash Singh, Hideki Ochiai

    IEEE Vehicular Technology Conference　Vol. 2017-　2017/11/14　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  66. On Spectral Sharing Based on Power Control for Aerial and Ground Communication Links

    Fumie Ono, Hideki Ochiai, Ryu Miura, Fumihide Kojima

    Vehicular Technology Conference (VTC-Fall), 2017 IEEE 86th　2017/09　Research paper (international conference proceedings)

    Publisher: IEEE

  67. Fourth-Order Moment Analysis of Filtered Single-Carrier and OFDM Signals

    Hideki Ochiai

    Vehicular Technology Conference (VTC-Fall), 2017 IEEE 86th　2017/09

    Publisher: IEEE

  68. On design of CRC codes for polar codes with successive cancellation list decoding

    Takumi Murata, Hideki Ochiai

    IEEE International Symposium on Information Theory - Proceedings　p. 1868-1872　2017/08/09　Research paper (international conference proceedings)

    Publisher: Institute of Electrical and Electronics Engineers Inc.

  69. On design of CRC codes for polar codes with successive cancellation list decoding

    Takumi Murata, Hideki Ochiai

    Information Theory (ISIT), 2017 IEEE International Symposium on　2017/06

    Publisher: IEEE

  70. On design of CRC codes for polar codes with successive cancellation list decoding

    Takumi Murata, Hideki Ochiai

    Information Theory (ISIT), 2017 IEEE International Symposium on　2017/06　Research paper (international conference proceedings)

    Publisher: IEEE

  71. A New Trellis Shaping Design for Peak Power Reduction of SC-FDMA Signals With High-Order QAM

    Taewoo Lee, Hideki Ochiai

    IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY　Vol. 66　No. 6　p. 5030-5042　2017/06　Research paper (scientific journal)

  72. Energy Efficiency Improvement of Coded OFDM Systems Based on PAPR Reduction

    Ryota Yoshizawa, Hideki Ochiai

    IEEE SYSTEMS JOURNAL　Vol. 11　No. 2　p. 717-728　2017/06　Research paper (scientific journal)

  73. Peak and Average Power Reduction of OFDM Signals Based on Trellis Shaping with Controllable Region Expansion

    Masaki Mastuoka, Ryota Yoshizawa, Hideki Ochiai

    WIRELESS PERSONAL COMMUNICATIONS　Vol. 93　No. 3　p. 737-754　2017/04　Research paper (scientific journal)

  74. A Classification of OFDM Signals With or Without DFT Precoding Based on High-Order Moment

    Yusaku Yamashita, Hideki Ochiai

    2017 IEEE INTERNATIONAL SYMPOSIUM ON DYNAMIC SPECTRUM ACCESS NETWORKS (IEEE DYSPAN)　2017/03　Research paper (international conference proceedings)

  75. Trellis-Assisted Constellation Subset Selection for PAPR Reduction of OFDM Signals

    Ryota Yoshizawa, Hideki Ochiai

    IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY　Vol. 66　No. 3　p. 2183-2198　2017/03　Research paper (scientific journal)

  76. Performance analysis of the clustering-based multihop wireless energy harvesting sensor networks over symmetric and asymmetric fading channels

    Vikash Singh, Hideki Ochiai

    International Journal of Distributed Sensor Networks　Vol. 13　No. 2　p. 1-1　2017/02/01　Research paper (scientific journal)

  77. Performance analysis of the clustering-based multihop wireless energy harvesting sensor networks over symmetric and asymmetric fading channels

    Vikash Singh, Hideki Ochiai

    International Journal of Distributed Sensor Networks　Vol. 13　No. 2　p. 1-1　2017/02/01　Research paper (scientific journal)

    Publisher: Hindawi Publishing Corporation

  78. Throughput Improvement by Cluster-Based Multihop Wireless Networks with Energy Harvesting Relays

    Vikash Singh, Hideki Ochiai

    PROCEEDINGS OF THE 2017 IEEE TOPICAL CONFERENCE ON WIRELESS SENSORS AND SENSOR NETWORKS (WISNET)　p. 61-64　2017　Research paper (international conference proceedings)

  79. Performance Analysis of Multiuser Detection and Decoding for Subcarrier Hopping Multiple Access

    Yuta Hori, Hideki Ochiai

    2017 14TH IEEE ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC)　p. 980-985　2017　Research paper (international conference proceedings)

  80. A low-complexity matched filter detector with parallel interference cancellation for massive MIMO systems

    Yuto Hama, Hideki Ochiai

    International Conference on Wireless and Mobile Computing, Networking and Communications　2016/11/30　Research paper (international conference proceedings)

    Publisher: IEEE Computer Society

  81. Performance of OFDM Systems with Adaptive DFT-Precoding

    Yusaku Yamashita, Hideki Ochiai

    2016 50TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS　p. 894-898　2016/11　Research paper (international conference proceedings)

  82. A Wireless Relay Network Based on Unmanned Aircraft System With Rate Optimization

    Fumie Ono, Hideki Ochiai, Ryu Miura

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 15　No. 11　p. 7699-7708　2016/11　Research paper (scientific journal)

  83. Performance Evaluation of Subcarrier Hopping Multiple Access in Wireless LAN Scenarios

    Yuta Hori, Hideki Ochiai

    2016 IEEE 27TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC)　p. 518-523　2016/09　Research paper (international conference proceedings)

  84. Punctured Parallel Concatenated Convolutional Lattice Codes

    Toshiki Matsumine, Hideki Ochiai

    2016 9TH INTERNATIONAL SYMPOSIUM ON TURBO CODES AND ITERATIVE INFORMATION PROCESSING (ISTC)　p. 116-120　2016/09　Research paper (international conference proceedings)

  85. A Novel Design and Modeling of UEP-Based Compressed Video Broadcasting With Multilevel Coded Modulation

    Yoshito Watanabe, Hideki Ochiai

    IEEE TRANSACTIONS ON BROADCASTING　Vol. 62　No. 3　p. 598-609　2016/09　Research paper (scientific journal)

  86. A Novel FPGA Implementation of Trellis Shaping for PAPR Reduction of OFDM Signals

    Jiajia Song, Hideki Ochiai

    2016 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　2016/05　Research paper (international conference proceedings)

  87. A Design of Multiuser Detection and Decoding for Subcarrier Hopping Multiple Access based on Coded OFDM

    Yuta Hori, Hideki Ochiai

    2016 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　2016/05　Research paper (international conference proceedings)

  88. Performance Analysis for OFDM Signals With Peak Cancellation

    Jiajia Song, Hideki Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 64　No. 1　p. 261-270　2016/01　Research paper (scientific journal)

  89. Performance Analysis and Interleaver Structure Optimization for Short-Frame BICM-OFDM Systems

    Yuta Hori, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 15　No. 1　p. 651-662　2016/01　Research paper (scientific journal)

  90. A Low PAPR Subcarrier Hopping Multiple Access with Coded OFDM for Low Latency Wireless Networks

    Yuta Hori, Hideki Ochiai

    2015 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)　2015/12　Research paper (international conference proceedings)

  91. Mutual Information and Coded BER Analysis of PAPR Reduced OFDM System with Active Constellation Extension

    Ryota Yoshizawa, Hideki Ochiai

    2015 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)　2015/12　Research paper (international conference proceedings)

  92. Exploiting Padding Bits for Improvement of Channel Decoder Performance

    Yoshito Watanabe, Hideki Ochiai

    2015 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)　2015/12　Research paper (international conference proceedings)

  93. High-Order Moments and Gaussianity of Single-Carrier and OFDM Signals

    Hideki Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 63　No. 12　p. 4964-4976　2015/12　Research paper (scientific journal)

  94. Multilevel Coded Modulation With Reduced Latency Decoding Based on Novel Set Partitioning for APSK

    Daiki Yoda, Hideki Ochiai

    IEEE TRANSACTIONS ON BROADCASTING　Vol. 61　No. 4　p. 674-684　2015/12　Research paper (scientific journal)

  95. Performance Comparison of Coded OFDM with DFT-Precoding Over Nonlinear Channels

    Yusaku Yamashita, Hideki Ochiai

    2015 IEEE INTERNATIONAL CONFERENCE ON UBIQUITOUS WIRELESS BROADBAND (ICUWB)　2015/10　Research paper (international conference proceedings)

  96. High-Order Statistical Analysis for Linearly Modulated Signals

    Hideki Ochiai

    2015 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2015)　p. 1524-1529　2015/10　Research paper (international conference proceedings)

  97. Effect of Clipping and Filtering with Distortionless PAPR Reduction for OFDM Systems

    Ryota Yoshizawa, Hideki Ochiai

    2015 IEEE 82ND VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)　2015/09　Research paper (international conference proceedings)

  98. Bit Error Rate Analysis of Convolutionally Coded BICM with Specific Interleaver Structures

    Yuta Hori, Hideki Ochiai

    2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　p. 4272-4277　2015/06　Research paper (international conference proceedings)

  99. Parallel Concatenated Convolutional Lattice Codes With Constrained States

    Patrick Mitran, Hideki Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 63　No. 4　p. 1081-1090　2015/04　Research paper (scientific journal)

  100. Theoretical Error Rate Analysis of Trellis Shaped M-QAM Constellations

    Ryota Yoshizawa, Hideki Ochiai

    2015 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)　p. 609-614　2015/03　Research paper (international conference proceedings)

  101. A low-complexity peak cancellation scheme and its FPGA implementation for peak-to-average power ratio reduction

    Jiajia Song, Hideki Ochiai

    EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING　Vol. 2015　No. 1　p. 1-14　2015/03　Research paper (scientific journal)

  102. A Trellis Shaping for Peak and Average Power Reduction of BICM-OFDM Signals

    Ryota Yoshizawa, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 14　No. 2　p. 1143-1154　2015/02　Research paper (scientific journal)

  103. Distortion Modeling and Analysis for Multilevel Coded APSK with Memoryless Nonlinearity

    Daiki Yoda, Hideki Ochiai

    2014 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM 2014)　p. 2874-2879　2014/12　Research paper (international conference proceedings)

  104. An Optimal Code Rate Design of Multilevel Coded Modulation for Multimedia Data Transmission Employing Unequal Error Protection

    Yoshito Watanabe, Hideki Ochiai

    2014 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM 2014)　p. 1406-1411　2014/12　Research paper (international conference proceedings)

  105. FPGA Implementation of Peak Cancellation for PAPR Reduction of OFDM Signals

    Jiajia Song, Hideki Ochiai

    2014 IEEE International Conference on Communication Systems (ICCS)　p. 414-418　2014/11　Research paper (international conference proceedings)

  106. Characterization of power spectral density for nonlinearly amplified OFDM signals based on cross-correlation coefficient

    Taewoo Lee, Hideki Ochiai

    EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING　Vol. 2014　No. 1　p. 1-15　2014/11　Research paper (scientific journal)

  107. A Virtual MIMO Relay System with Unmanned Aircraft and Multiple Ground Stations

    Kensuke Ikeda, Fumie Ono, Hideki Ochiai, Ryu Miura

    2014 IEEE 80TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)　2014/09　Research paper (international conference proceedings)

  108. A Novel Trellis-Based PAPR Reduction Technique for OFDM Signals

    Ryota Yoshizawa, Hideki Ochiai

    2014 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT)　p. 1563-1567　2014/06　Research paper (international conference proceedings)

  109. An Interleaver Optimization for BICM-OFDM with Convolutional Codes over Frequency-Selective Block Fading Channels

    Yuta Hori, Hideki Ochiai

    2014 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)　p. 769-774　2014/04　Research paper (international conference proceedings)

  110. Amplifier Efficiency and Distortion Trade-Off of OFDM System with Iterative Clipping and Filtering

    Jiajia Song, Hideki Ochiai

    2014 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)　p. 725-729　2014/04　Research paper (international conference proceedings)

  111. A Simple Characterization of Power Spectral Density for Nonlinearly Amplified OFDM Signals

    Taewoo Lee, Hideki Ochiai

    2014 IEEE TOPICAL CONFERENCE ON POWER AMPLIFIERS FOR WIRELESS AND RADIO APPLICATIONS (PAWR)　p. 88-90　2014/01　Research paper (international conference proceedings)

  112. Performance Analysis of Wireless Relay Network Using Network Coding and UAS

    Fumie Ono, Hideki Ochiai, Kenichi Takizawa, Mikio Suzuki, Ryu Miura

    2013 IEEE GLOBECOM WORKSHOPS (GC WKSHPS)　p. 1409-1414　2013/12　Research paper (international conference proceedings)

  113. Performance Comparison of Uncoded OFDM Systems with Trellis Shaping over Nonlinear Channels

    Ryota Yoshizawa, Hideki Ochiai

    WIRELESS PERSONAL COMMUNICATIONS　Vol. 72　No. 3　p. 1603-1617　2013/10　Research paper (scientific journal)

  114. Analysis and Optimization of Trellis Shaping Concatenated with Bit-Interleaved Coded Modulation

    Ryota Yoshizawa, Hideki Ochiai

    2013 IEEE 78TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)　2013/09　Research paper (international conference proceedings)

  115. A Signal Constellation Design for STBC with Spatial and Temporal Modulation

    Fumie Ono, Tatsuya Muramatsu, Hideki Ochiai, Ryu Miura

    ISWCS 2013; The Tenth International Symposium on Wireless Communication Systems　p. 661-665　2013/08　Research paper (international conference proceedings)

  116. On Modulation Selection for Energy-Efficient Band-limited Communication Systems

    Hideki Ochiai

    ISWCS 2013; The Tenth International Symposium on Wireless Communication Systems　2013/08　Research paper (international conference proceedings)

  117. A New Candidate Adding Algorithm for Coded MIMO Systems with Fixed-Complexity Detection

    Takuma Tsubaki, Hideki Ochiai

    2013 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　p. 4525-4529　2013/06　Research paper (international conference proceedings)

  118. Improvement of Peak and Average Power Reduction of Trellis Shaped OFDM Signals by Controllable Region Expansion

    Masaki Matsuoka, Ryota Yoshizawa, Hideki Ochiai

    2013 16TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS (WPMC)　2013/06　Research paper (international conference proceedings)

  119. Two-Way Relay Networks using Unmanned Aircraft Systems

    Fumie Ono, Hideki Ochiai, Kenichi Takizawa, Mikio Suzuki, Ryu Miura

    2013 IEEE 77TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)　2013/06　Research paper (international conference proceedings)

  120. A Peak Power Efficient Cooperative Diversity using Star-QAM with Coherent/Noncoherent Detection

    Koji Ishibashi, Won-Yong Shin, Hideki Ochiai, Vahid Tarokh

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 12　No. 5　p. 2137-2147　2013/05　Research paper (scientific journal)

  121. Power-Reductive Precoding for the Transmission of Correlated Information Sequences

    Makoto Tanahashi, Hideki Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 61　No. 4　p. 1393-1403　2013/04　Research paper (scientific journal)

  122. An analysis of band-limited communication systems from amplifier efficiency and distortion perspective

    Hideki Ochiai

    IEEE Transactions on Communications　Vol. 61　No. 4　p. 1460-1472　2013　Research paper (scientific journal)

    Publisher: IEEE

  123. A reduced-complexity multilevel coded modulation for APSK signaling

    Daiki Yoda, Hideki Ochiai

    IEEE International Symposium on Information Theory - Proceedings　p. 1994-1998　2013　Research paper (international conference proceedings)

  124. Statistical distributions of instantaneous power and peak-to-average power ratio for single-carrier FDMA systems

    Hideki Ochiai

    Physical Communication　Vol. 8　p. 47-55　2013　Research paper (scientific journal)

    Publisher: Elsevier B.V.

  125. Classification of M-ary QAM based on instantaneous power moment with adjustable median

    Ryosuke Miyauchi, Hideki Ochiai

    Proceedings - IEEE Military Communications Conference MILCOM　p. 52-57　2013　Research paper (international conference proceedings)

  126. Peak Power Reduction of SC-FDMA Signals Based on Trellis Shaping

    Taewoo Lee, Hideki Ochiai

    2012 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)　p. 3268-3273　2012/12　Research paper (international conference proceedings)

  127. Energy Minimization of Wireless Sensor Networks based on Modulation and Coding Optimization under Finite Frame Length Constraint

    Kei Kinoshita, Hideki Ochiai

    2012 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2012)　2012/10　Research paper (international conference proceedings)

  128. Energy Harvesting Cooperative Communications: Concept and Performance

    Koji Ishibashi, Hideki Ochiai, Vahid Tarokh

    Proc. of TriSAI 2012　p. 1-5　2012/09　Research paper (international conference proceedings)

  129. Comparison of Coded Modulations for Trellis-Shaped Single-Carrier PSK with PAPR Reduction

    Yuuki Nishino, Hideki Ochiai

    2012 IEEE VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)　2012/09　Research paper (international conference proceedings)

  130. Energy Harvesting Cooperative Communications

    Koji Ishibashi, Hideki Ochiai, Vahid Tarokh

    2012 IEEE 23RD INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC)　p. 1819-1823　2012/09　Research paper (international conference proceedings)

  131. Adaptive one-way and two-way relaying for MIMO relay networks

    Sho Mukai, Fumie Ono, Hideki Ochiai, Ryu Miura

    The 15th International Symposium on Wireless Personal Multimedia Communications　p. 286-290　2012/09　Research paper (international conference proceedings)

  132. A space-time block code with temporal and spatial modulation

    Tatsuya Muramatsu, Fumie Ono, Hideki Ochiai, Ryu Miura

    The 15th International Symposium on Wireless Personal Multimedia Communications　p. 519-523　2012/09　Research paper (international conference proceedings)

  133. Physical-layer Network Coding using FSK Modulation under Frequency Offset

    Terry Ferrett, Hideki Ochiai, Matthew C. Valenti

    2012 IEEE 75TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)　2012/07　Research paper (international conference proceedings)

  134. A Serial Concatenation of Coding and Trellis Shaping for OFDM Systems with Peak Power Reduction

    Ryota Yoshizawa, Hideki Ochiai

    2012 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT)　2012/07　Research paper (international conference proceedings)

  135. Further Complexity Reduction of MIMO PSK Signal Detection Based on Symbol Distribution Approximation

    Shunsuke Tanaka, Hideki Ochiai

    2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　2012/06　Research paper (international conference proceedings)

  136. Peak-to-average power ratio distribution analysis of single-carrier FDMA signals

    Hideki Ochiai

    European Wireless 2012; 18th European Wireless Conference 2012　2012/04　Research paper (international conference proceedings)

  137. On Instantaneous Power Distributions of Single-Carrier FDMA Signals

    Hideki Ochiai

    IEEE WIRELESS COMMUNICATIONS LETTERS　Vol. 1　No. 2　p. 73-76　2012/04　Research paper (scientific journal)

  138. Analysis of Instantaneous Power Distributions for Non-Regenerative and Regenerative Relaying Signals

    Koji Ishibashi, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 11　No. 1　p. 258-265　2012/01　Research paper (scientific journal)

  139. A Peak Power Efficient Cooperative Diversity Using Star-QAM

    Koji Ishibashi, Won-Yong Shin, Hyo Seok Yi, Hideki Ochiai

    2011 IEEE GLOBECOM WORKSHOPS (GC WKSHPS)　p. 1388-1392　2011/12　Research paper (international conference proceedings)

  140. Multilevel Coded Cooperation for Multiple Sources

    Koji Ishii, Koji Ishibashi, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 10　No. 12　p. 4258-4269　2011/12　Research paper (scientific journal)

  141. A New Reduced-Complexity Conditional-Mean Based MIMO Signal Detection Using Symbol Distribution Approximation Technique

    Makoto Tanahashi, Hideki Ochiai

    IEEE TRANSACTIONS ON SIGNAL PROCESSING　Vol. 59　No. 11　p. 5644-5651　2011/11　Research paper (scientific journal)

  142. Physical layer energy optimization analysis for fixed bandwidth wireless sensor networks

    Felipe M. Costa, Bruno H. C. Faria, Flavio A. C. M. Filho, Hideki Ochiai

    2011 The 14th International Symposium on Wireless Personal Multimedia Communications (WPMC)　2011/10　Research paper (international conference proceedings)

  143. Performance comparison of trellis-shaped OFDM systems over nonlinear channels

    Ryota Yoshizawa, Hideki Ochiai

    2011 The 14th International Symposium on Wireless Personal Multimedia Communications (WPMC)　2011/10　Research paper (international conference proceedings)

  144. Peak Power Reduction of OFDM Signals Using Trellis Shaping with M-Algorithm

    Ryota Yoshizawa, Hideki Ochiai

    2011 20TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS (ICCCN)　2011/07　Research paper (international conference proceedings)

  145. Energy-efficient physical layer design for wireless sensor network links

    Felipe M. Costa, Hideki Ochiai

    IEEE International Conference on Communications　2011/06　Research paper (international conference proceedings)

  146. Performance analysis of amplify and forward cooperation over peak-power limited channels

    Koji Ishibashi, Hideki Ochiai

    IEEE International Conference on Communications　2011/06　Research paper (international conference proceedings)

  147. Energy-Efficient Physical Layer Design for Wireless Sensor Network Links

    Felipe M. Costa, Hideki Ochiai

    2011 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　2011/06　Research paper (international conference proceedings)

  148. Performance Analysis of Amplify and Forward Cooperation over Peak-Power Limited Channels

    Koji Ishibashi, Hideki Ochiai

    2011 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)　2011/06　Research paper (international conference proceedings)

  149. Exact and Approximate Distributions of Instantaneous Power for Pulse-Shaped Single-Carrier Signals

    Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 10　No. 2　p. 682-692　2011/02　Research paper (scientific journal)

  150. Dynamic Coded Cooperation Using Multiple Turbo Codes in Wireless Relay Networks

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING　Vol. 5　No. 1　p. 197-207　2011/02　Research paper (scientific journal)

  151. Multiple-Access Relay System based on Nested Distributed Turbo Code

    K. Ishii, K. Ishibashi, H. Ochiai

    Proc. of IEEE RWS 2011　p. 1-4　2011/01　Research paper (international conference proceedings)

  152. Multiple-Access Relay System based on Nested Distributed Turbo Code

    K. Ishii, K. Ishibashi, H. Ochiai

    2011 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS)　p. 38-41　2011　Research paper (international conference proceedings)

  153. Dynamic Coded Cooperation using Multiple Turbo Codes in Cognitive Radio Network

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    IEEE Journal on Selected Topics in Signal Processing　2011

  154. On limitation of clipping and filtering in IEEE 802.11g based wireless LAN system

    Taewoo Lee, Hideki Ochiai

    2011 IEEE 12th Annual Wireless and Microwave Technology Conference, WAMICON 2011　2011　Research paper (international conference proceedings)

  155. On power amplifier efficiencies of linearly modulated signals with nonlinear distortion

    Hideki Ochiai

    Proceedings of the International Symposium on Wireless Communication Systems　p. 397-401　2011　Research paper (international conference proceedings)

  156. A Comparison of Modulations for Energy Optimization in Wireless Sensor Network Links

    Felipe M. Costa, Hideki Ochiai

    2010 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE GLOBECOM 2010　2010/12　Research paper (international conference proceedings)

  157. An Approximate Distribution of Instantaneous Power in Band-Limited PSK Signals

    Hideki Ochiai

    2010 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE GLOBECOM 2010　2010/12　Research paper (international conference proceedings)

  158. Combined Trellis Precoding and Error Correcting Codes in Multi-User MIMO-OFDM Systems

    Tsuguhide Aoki, Hideki Ochiai, Ryuji Kohno

    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES　Vol. E93A　No. 12　p. 2663-2671　2010/12　Research paper (scientific journal)

  159. Symbol insertion: A low-complexity joint peak power reduction and forward error correction for single-carrier systems

    M. Tanahashi, H. Ochiai

    IEEE Transactions on Communications　Vol. 58　No. 11　p. 1207-1215　2010/11　Research paper (scientific journal)

  160. A bit-labeling design for trellis-shaped single-carrier PSK with PAPR reduction

    Yuuki Nishino, Makoto Tanahashi, H. Ochiai

    EURASIP Journal on Advances in Signal Processing　2010/09/05　Research paper (scientific journal)

  161. Dynamic turbo coded cooperation with simple power detection

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    IEEE International Conference on Communications　2010/05　Research paper (international conference proceedings)

  162. Experimental analysis of clipping and filtering effects on OFDM systems

    Taewoo Lee, Hideki Ochiai

    IEEE International Conference on Communications　2010/05　Research paper (international conference proceedings)

  163. Dynamic Turbo Coded Cooperation based on Simple Power Detector

    K. Ishibashi, K. Ishii, H. Ochiai

    Proc. of IEEE ICC 2010　p. 1-6　2010/05　Research paper (international conference proceedings)

  164. Experimental Analysis of Clipping and Filtering Effects on OFDM Systems

    Taewoo Lee, Hideki Ochiai

    2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS　2010/05　Research paper (international conference proceedings)

  165. Energy Optimization for Reliable Point-to-Point Communication in Energy-Constrained Networks

    Felipe M. Costa, Hideki Ochiai

    2010 IEEE 71ST VEHICULAR TECHNOLOGY CONFERENCE　2010/05　Research paper (international conference proceedings)

  166. On the Distribution of Instantaneous Power in Single-Carrier Signals

    Makoto Tanahashi, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 9　No. 3　p. 1207-1215　2010/03　Research paper (scientific journal)

  167. Turbo Decoding of Concatenated Channel Coding and Trellis Shaping for Peak Power Controlled Single-Carrier Systems

    Makoto Tanahashi, Hideki Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 58　No. 1　p. 9-15　2010/01　Research paper (scientific journal)

  168. Dynamic Turbo Coded Cooperation with Simple Power Detection

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS　2010　Research paper (international conference proceedings)

  169. A simple interleaver design for variable-length turbo codes

    Ken Enokizono, Hideki Ochiai

    6th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2010　p. 354-358　2010　Research paper (international conference proceedings)

  170. A new bit-labeling for Trellis-shaped PSK with improved PAPR reduction capability

    Yuuki Nishino, Makoto Tanahashi, Hideki Ochiai

    ISITA/ISSSTA 2010 - 2010 International Symposium on Information Theory and Its Applications　p. 747-751　2010　Research paper (international conference proceedings)

  171. Analysis and efficient computation of instantaneous power distribution of single-carrier signals

    Makoto Tanahashi, Hideki Ochiai

    Proceedings of The 2009 IEEE Global Telecommunications Conference (GLOBECOM 2009)　p. 2919-2924　2009/12　Research paper (international conference proceedings)

  172. A Multilevel Coded Modulation Approach for Hexagonal Signal Constellation

    Makoto Tanahashi, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 8　No. 10　p. 4993-4997　2009/10　Research paper (scientific journal)

  173. Peak power reduction of single-carrier signals using trellis shaping with M and stack algorithms

    Masaru Iki, Makoto Tanahashi, Hideki Ochiai

    Proceedings of 2009 IEEE 70th Vehicular Technology Conference Fall (VTC2009-Fall)　2009/09　Research paper (international conference proceedings)

    Publisher: IEEE

  174. Improving error rate performance of correlated sources by non-root-Nyquist pulse shaping

    M. Tanahashi, H.Ochiai

    Proceedings of 2009 IEEE 70th Vehicular Technology Conference Fall (VTC2009-Fall)　2009/09　Research paper (international conference proceedings)

    Publisher: IEEE

  175. Bit-Interleaved Coded DPSK with Cyclic Delay Diversity: Design and Analysis

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 8　No. 9　p. 4762-4772　2009/09　Research paper (scientific journal)

  176. Peak power reduction of single-carrier signals using trellis shaping with M and stack algorithms

    Masaru Iki, Makoto Tanahashi, Hideki Ochiai

    Proceedings of 2009 IEEE 70th Vehicular Technology Conference Fall (VTC2009-Fall)　p. 1677-1681　2009/09　Research paper (international conference proceedings)

  177. Improving error rate performance of correlated sources by non-root-Nyquist pulse shaping

    M. Tanahashi, H.Ochiai

    Proceedings of 2009 IEEE 70th Vehicular Technology Conference Fall (VTC2009-Fall)　p. 1072-1075　2009/09　Research paper (international conference proceedings)

  178. Design of adaptive coded cooperation using rate compatible turbo codes

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    Proceedings of 2009 IEEE 70th Vehicular Technology Conference Fall (VTC2009-Fall)　p. 759-+　2009/09　Research paper (international conference proceedings)

  179. On the performance of cooperative communications with constellation rearrangement

    Shoichi Nakata, Makoto Tanahashi, Hideki Ochiai

    Proceedings of The 12th International Symposium on Wireless Personal Multimedia Communications (WPMC 2009)　2009/09　Research paper (international conference proceedings)

    Publisher: IEEE

  180. Some practical considerations for peak power reduction of OFDM systems

    Hideki Ochiai

    Proceedings of The 12th International Symposium on Wireless Personal Multimedia Communications (WPMC 2009)　2009/09　Research paper (international conference proceedings)

    Publisher: IEEE

  181. FPGA implementation of trellis shaping to control peak power for PSK signals

    Hiroyuki Kitagawa, Makoto Tanahashi, Hideki Ochiai

    Proceedings of The 2009 IEEE International Conference on Communications (ICC 2009)　2009/06　Research paper (international conference proceedings)

    Publisher: IEEE

  182. A novel cooperative diversity based on multilevel coded modulation

    Koji Ishii, Koji Ishibashi, Hideki Ochiai

    Proceedings of The 2009 IEEE International Conference on Communications (ICC 2009)　2009/06　Research paper (international conference proceedings)

    Publisher: IEEE

  183. Trellis Shaping for Controlling Envelope of Single-Carrier High-Order QAM Signals

    Makoto Tanahashi, Hideki Ochiai

    IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING　Vol. 3　No. 3　p. 430-437　2009/06　Research paper (scientific journal)

  184. On destructive superposition of shaping pulses in band-limited linear modulation systems

    Makoto Tanahashi, Hideki Ochiai

    Proceedings of The 2009 IEEE International Symposium on Information Theory (ISIT 2009)　p. 1535-1539　2009/06　Research paper (international conference proceedings)

  185. FPGA implementation of trellis shaping to control peak power for PSK signals

    Hiroyuki Kitagawa, Makoto Tanahashi, Hideki Ochiai

    Proceedings of The 2009 IEEE International Conference on Communications (ICC 2009)　p. 2876-2880　2009/06　Research paper (international conference proceedings)

  186. A novel cooperative diversity based on multilevel coded modulation

    Koji Ishii, Koji Ishibashi, Hideki Ochiai

    Proceedings of The 2009 IEEE International Conference on Communications (ICC 2009)　p. 3301-+　2009/06　Research paper (international conference proceedings)

  187. Near Constant Envelope Trellis Shaping for PSK Signaling

    Makoto Tanahashi, Hideki Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 57　No. 2　p. 450-458　2009/02　Research paper (scientific journal)

  188. Collaborative beamforming

    Ochiai, H., Imai, H.

    New Directions in Wireless Communications Research　2009　Research paper (scientific journal)

  189. A Simple OFDM-Based Multiple Access System with Super-Orthogonal Convolutional Codes and Golay Sequence

    Hideki Ochiai, Yu Takayama

    2009 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-5　p. 433-437　2009　Research paper (international conference proceedings)

  190. On the Performance of Clipping Noise Cancellation for OFDM Systems with High-Order Coded Modulation

    Toru Uchino, Hideki Ochiai

    Proc. ISITA2008　p. 321-325　2008/12　Research paper (international conference proceedings)

  191. Noncoherent Iterative Decoding of Symbol Insertion Systems

    Makoto Tanahashi, Hideki Ochiai

    Proc. ISITA2008　p. 572-577　2008/12　Research paper (international conference proceedings)

  192. Collaborative Diversity Enhancements using Rate-Compatible Turbo Codes

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    Proc. ISITA2008　p. 19-+　2008/12　Research paper (international conference proceedings)

  193. Multilevel Coded Cooperation: Concepts and Design Criteria

    Koji Ishii, Koji Ishibashi, Hideki Ochiai

    Proc. ISITA2008　p. 7-+　2008/12　Research paper (international conference proceedings)

  194. A simple modulation code with peak power reduction and coding gain

    Makoto Tanahashi, Hideki Ochiai

    Proc. IEEE International Conference on Communications (ICC 2008)　p. 1365-1369　2008/05　Research paper (international conference proceedings)

    Publisher: IEEE

  195. Embedded Forward Error Control Technique (EFECT) for low-rate but low latency communications

    Koji Ishibashi, Hideki Ochiai, Ryuji Kohno

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 7　No. 5　p. 1456-1460　2008/05　Research paper (scientific journal)

  196. Random array theory and collaborative beamforming

    Ochiai, H., Mitran, P., Poor, H.V., Tarokh, V.

    Handbook on Advancements in Smart Antenna Technologies for Wireless Networks　2008　Research paper (scientific journal)

  197. A simple modulation code with peak power reduction and coding gain

    Makoto Tanahashi, Hideki Ochiai

    2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13　p. 1365-1369　2008　Research paper (international conference proceedings)

  198. Diversity Order Analysis of Bit-Interleaved Coded DPSK with Cyclic Delay Diversity

    Koji Ishibashi, Koji Ishii, Hideki Ochiai

    GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE　2008　Research paper (international conference proceedings)

  199. An Efficient Hybrid ARQ System Using Multilevel Coded Modulation with Reduced Constellation Size

    Takashi Tamagawa, Hideki Ochiai

    GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE　2008　Research paper (international conference proceedings)

  200. Trellis Shaping with Flexible Control of Peak and Average Power for Single-Carrier High-Order QAM

    Makoto Tanahashi, Hideki Ochiai

    GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE　2008　Research paper (international conference proceedings)

  201. Embedded forward error control technique (EFECT) for low-rate real-time communications

    Koji Ishibashi, Hideki Ochiai, Ryuji Kohno

    GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-11　p. 4565-+　2007/11　Research paper (international conference proceedings)

  202. Low complexity bit-interleaved coded DAPSK with cyclic delay diversity

    Koji Ishibashi, Hideki Ochiai, Ryuji Kohno

    2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9　p. 471-+　2007/09　Research paper (international conference proceedings)

  203. Design of Reed -Solomon Codes for OFDM Systems with Clipping and Filtering

    Takahiro Masakawa, Hideki Ochiai

    Proceedings of The 2007 IEEE Wireless Communications & Networking Congerence (WCNC 2007)　p. 1362-1367　2007/03　Research paper (international conference proceedings)

  204. A new trellis shaping approach for pulse-shaped PSK signals with almost constant envelope

    Makoto Tanahashi, Hideki Ochiai

    IEEE International Conference on Communications　p. 5598-5603　2007　Research paper (international conference proceedings)

  205. Impulse radio UWB positioning system

    Akira Fujii, Hidenori Sekiguchi, Masafumi Asai, Shigemi Kurashima, Hideki Ochiai, Ryuji Kohno

    2007 IEEE RADIO AND WIRELESS SYMPOSIUM　p. 333-336　2007　Research paper (international conference proceedings)

  206. A new trellis shaping approach for pulse-shaped PSK signals with almost constant envelope

    Makoto Tanahashi, Hideki Ochiai

    2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14　p. 5598-5603　2007　Research paper (international conference proceedings)

  207. Iterative decoding of concatenated channel coding and trellis shaping based on Markov model

    Makoto Tanahashi, Hideki Ochiai

    GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-11　p. 3905-3909　2007　Research paper (international conference proceedings)

  208. A new secret key agreement scheme based on eigenvalues of channel matrices in phase-controlled MIMO systems

    Kengo Hiwatashi, Hideki Ochiai, Junji Shikata

    Proc. ISITA 2006　p. 265-270　2006/10　Research paper (international conference proceedings)

  209. A new trellis shaping design for peak power reduction of single-carrier QAM signals

    Makoto Tanahashi, Hideki Ochiai

    Proc. ISITA 2006　p. 81-86　2006/10　Research paper (international conference proceedings)

  210. Variable-rate two-phase collaborative communication protocols for wireless networks

    Hideki Ochiai, Patrick Mitran, Vahid Tarokh

    IEEE TRANSACTIONS ON INFORMATION THEORY　Vol. 52　No. 9　p. 4299-4313　2006/09　Research paper (scientific journal)

  211. Amplifier efficiencies of OFDM systems with peak power and envelope variance reduction

    Hideki Ochiai

    Proc. IEEE ISSPIT 2006　p. 828-833　2006/08　Research paper (international conference proceedings)

  212. On the Performance of LDPC Codes with Differential Detection over Rayleigh Fading Channels

    H. Tatsunami, K. Ishibashi, H. Ochiai

    Proc. of IEEE 63rd Vehicular Technology Conference (VTC'06 Spring)　p. 1-5　2006/05　Research paper (international conference proceedings)

  213. On the performance of LDPC codes with differential detection over Rayleigh fading channels

    Hiroshi Tatsunami, Koji Ishibashi, Hideki Ochiai

    Proc. IEEE VTC 2006 Spring　p. 2388-2392　2006/05　Research paper (international conference proceedings)

    Publisher: IEEE

  214. Foreword: Special section on information theory and its applications

    Morita, H., Koga, H., Nishiara, M., Iwamura, K., Oohama, Y., Ochiai, H., Kunisa, A., Kunihiro, N., Kubo, H., Kojima, T., Shibuya, T., Shiraki, Y., Nakagawa, K., Nakamura, M., Habuchi, H., Hamada, M., Matsumoto, R., Mohri, M., Moriya, T., Yamazato, T., Yamada, I., Wadayama, T., Kamabe, H., Hirose, S., Itami, M., Fujioka, A.

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences　Vol. E89-A　No. 10　2006　Research paper (scientific journal)

  215. Cooperation, competition and cognition in wireless networks: From theory to implementation

    Shin, O.-S., Devroye, N., Mitran, P., Ochiai, H., Ghassemzadeh, S.S., Kung, H.T., Tarokh, V.

    Cooperation in Wireless Networks: Principles and Applications: Real Egoistic Behavior is to Cooperate!　2006　Research paper (scientific journal)

  216. Collaborative beamforming for distributed wireless ad hoc sensor networks

    H Ochiai, P Mitran, HV Poor, Tarokh, V

    IEEE TRANSACTIONS ON SIGNAL PROCESSING　Vol. 53　No. 11　p. 4110-4124　2005/11　Research paper (scientific journal)

  217. Low-complexity bit-interleaved coded DAPSK for Rayleigh-fading channels

    K Ishibashi, H Ochiai, R Kohno

    IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS　Vol. 23　No. 9　p. 1728-1738　2005/09　Research paper (scientific journal)

  218. Space-time diversity enhancement's using collaborative communications

    P Mitran, H Ochiai, Tarokh, V

    IEEE TRANSACTIONS ON INFORMATION THEORY　Vol. 51　No. 6　p. 2041-2057　2005/06　Research paper (scientific journal)

  219. Collaborative diversity enhancements for wireless communications

    P Mitran, H Ochiai, Tarokh, V

    Proc. IEEE ICC 2005　p. 2437-2441　2005/05　Research paper (international conference proceedings)

  220. On the effects of phase estimation errors on collaborative beamforming in wireless ad hoc networks

    H Ochiai, P Mitran, HV Poor, Tarokh, V

    Proc. IEEE ICASSP 2005　p. 657-660　2005/03　Research paper (international conference proceedings)

  221. Collaborative diversity enhancements for wireless communications

    Patrick Mitran, Hideki Ochiai, Vahid Tarokh

    IEEE International Conference on Communications　Vol. 4　p. 2437-2441　2005　Research paper (international conference proceedings)

  222. Special section on multi-carrier signal processing techniques for next generation mobile communications - Part 1

    Ushirokawa, A., Sampei, S., Tsuji, H., Uesugi, M., Kudoh, E., Iwanami, Y., Uehara, H., Oishi, Y., Ohgane, T., Ohtsuki, T., Ohira, T., Ogose, S., Ochiai, H., Katayama, M., Shibuya, A., Shimizu, S., Serizawa, M., Taromaru, M., Fukawa, K., Maeyama, T., Miura, R., Mori, K., Yamao, Y., Gang, W., Sawahashi, M., Sakaguchi, K., Benvenuto, N., Han, Y., Svensson, A., Wang, L.-C., Wittke, P., Zheng, Z., Keiser, S., Shu, D.-S., Adachi, F.

    IEICE Transactions on Communications　Vol. E88-B　No. 1　2005　Research paper (scientific journal)

  223. A novel trellis-shaping design with both peak and average power reduction for OFDM, systems

    H Ochiai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 52　No. 11　p. 1916-1926　2004/11　Research paper (scientific journal)

  224. Collaborative beamforming in ad hoc networks

    H Ochiai, P Mitran, HV Poor, Tarokh, V

    Proc. IEEE ITW 2004　p. 396-401　2004/10　Research paper (international conference proceedings)

  225. Linear maximum likelihood decoding of space - time block coded OFDM systems for mobile communications

    GTF de Abreu, H Ochiai, R Kohno

    IEE PROCEEDINGS-COMMUNICATIONS　Vol. 151　No. 5　p. 447-459　2004/10　Research paper (scientific journal)

  226. Phase-noise effects on turbo trellis-coded modulation over M-ary coherent channels

    T Minowa, H Ochiai, H Imai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 52　No. 8　p. 1333-1343　2004/08　Research paper (scientific journal)

  227. Performance analysis of multiple-symbol differential detection for OFDM over both time- and frequency-selective Rayleigh fading channels

    A Ishii, H Ochiai, T Fujino

    EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING　Vol. 2004　No. 10　p. 1536-1545　2004/08　Research paper (scientific journal)

  228. On the performance of bit-interleaved coded DAPSK over Rayleigh fading channels

    K Ishibashi, H Ochiai, R Kohno

    Proc. IEEE ICC 2004　p. 732-736　2004/06　Research paper (international conference proceedings)

  229. Super-orthogonal convolutional coding with orthogonal pulse waveform for ultra wideband communications

    T Matsumoto, H Ochiai, R Kohno

    JOINT UWBST & IWUWBS 2004, CONFERENCE PROCEEDINGS　p. 202-206　2004　Research paper (international conference proceedings)

  230. Design and analysis of collaborative diversity Protocols for wireless sensor networks

    H Ochiai, P Mitran, Tarokh, V

    VTC2004-FALL: 2004 IEEE 60TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-7　p. 4645-4649　2004　Research paper (international conference proceedings)

  231. Performance of optimal and suboptimal detection for uncoded OFDM systems with deliberate clipping and filtering

    Hideki Ochiai

    Proc. IEEE GLOBECOM 2003　p. 1618-1622　2003/12　Research paper (international conference proceedings)

  232. Performance analysis of peak power and band-limited OFDM system with linear scaling

    H Ochiai

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS　Vol. 2　No. 5　p. 1055-1065　2003/09　Research paper (scientific journal)

  233. Turbo-like Beamspace-Time Code for Block Fading Channels

    ISHII Koji, OCHIAI Hideki, KOHNO Ryji

    IEEE WPMC　Vol. 3　No. 1　p. 395-399　2003

  234. Power efficiency comparison of OFDM and single-carrier signals

    Hideki Ochiai

    Proc. IEEE VTC 2002 Fall　p. 899-903　2002/09　Research paper (international conference proceedings)

  235. Performance analysis of deliberately clipped OFDM signals

    H Ochiai, H Imai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 50　No. 1　p. 89-101　2002/01　Research paper (scientific journal)

  236. Analysis and Reduction of Peak-to-Average Power Ratio in OFDM Systems

    2001/03/29　Doctoral thesis

  237. On the distribution of the peak-to-average power ratio in OFDM signals

    H Ochiai, H Imai

    IEEE TRANSACTIONS ON COMMUNICATIONS　Vol. 49　No. 2　p. 282-289　2001/02　Research paper (scientific journal)

  238. Performance of the deliberate clipping with adaptive symbol selection for strictly band-limited OFDM systems

    H Ochiai, H Imai

    IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS　Vol. 18　No. 11　p. 2270-2277　2000/11　Research paper (scientific journal)

  239. MDPSK-OFDM with highly power-efficient block codes for frequency-selective fading channels

    H Ochiai, H Imai

    IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY　Vol. 49　No. 1　p. 74-82　2000/01　Research paper (scientific journal)

  240. On decoding of block codes with peak-power reduction in OFDM systems

    H.Ochiai, MPC Fossorier, H.Imai

    IEEE Commun. Lett.　Vol. 4　No. 7　p. 226-228　2000　Research paper (other academic)

  241. Phase noise effect on turbo-coded modulation over the coherent M-ary channel

    T.Minowa, H.Ochiai, H.Imai

    Proc. IEEE Veh. Technol. Cof. (VTC '00 Spring), Tokyo　p. 2232-2236　2000　Research paper (other academic)

  242. Channel capacity of clipped OFDM systems

    H.Ochiai, H.Imai

    Proc. IEEE Int. Symp. on Inform. Theory (ISIT '00), Sorrento, Italy　p. 219-219　2000　Research paper (other academic)

  243. Performance analysis of downlink multi-carrier CDMA with maximum-likelihood detection

    Hideki Ochiai

    Proc. Int. Symp. Inform. Theory and its Applications. (ISITA '00), Honolulu, HI　Vol. 2　p. 748-751　2000　Research paper (other academic)

  244. On clipping for peak power reduction of OFDM signals

    H Ochiai, H Imai

    GLOBECOM '00: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1- 3　p. 731-735　2000　Research paper (international conference proceedings)

  245. Performance of OFDM-CDMA with simple peak power reduction

    H.Ociai, H.Imai

    Europ. Trans. Telecommun.　Vol. 10　No. 4　p. 391-398　1999　Research paper (other academic)

  246. Performance of downlink MC-CDMA with simple interference cancellation

    Hideki Ochiai,e

    Multi-Carrier Spread-Spectrum & Related Topics, K.Fazel and S. Kaiser (Editors), Kluwer Academic Publishers　p. 211-218　1999　Research paper (other academic)

  247. On the deliberately clipped and strictly bandlimited OFDM systems

    Hideki Ochiai,e

    Proc. 1999 Int. Symp. on Wireless Personal Multimedia Commun. (WPMC '99), Amsterdam, The Netherlands　p. 251-256　1999　Research paper (other academic)

  248. Block coding with peak power reduction for multicarrier systems

    H.Ociai, H.Imai

    Proc. IEEE 48th Veh. Technol. Cof. (VTC '98), Ottawa, Canada　p. 338-342　1998/03　Master’s thesis

  249. Performance of block codes with peak power reduction for indoor multicarrier systems

    Hideki Ochiai, Hideki Imai

    IEEE Vehicular Technology Conference　Vol. 1　p. 338-342　1998　Research paper (international conference proceedings)

    Publisher: IEEE

  250. OFDM-CDMA with peak power reduction based on the spreading sequences

    H.Ociai, H.Imai

    Proc. IEEE Int. Conf. Commun. (ICC '98),Atlanta, GA　p. 1299-1303　1998　Research paper (other academic)

  251. Block codes for frequency diversity and peak power reduction in multicarrier systems

    H.Ociai, H.Imai

    Proc. IEEE Int. Symp. Inform. Theory (ISIT '98), Cambridge, MA　p. 192-192　1998　Research paper (other academic)

  252. Peak-power reduction schemes in OFDM systems: A review

    Hideki Ochiai,e

    Proc. 1998 Int. Symp. Wireless Personal Multimedia Commun. (WPMC '98), Yokosuka Research Park (YRP)　p. 247-252　1998　Research paper (other academic)

  253. Forward error correction with reduction of peak to average power ratio of QPSK multicarrier signals

    H.Ociai, H.Imai

    Proc. IEEE Int. Symp. on Inform. Theory (ISIT '97), Ulm, Germany　1997/07　Research paper (international conference proceedings)

    Publisher: IEEE

  254. Block coding scheme based on complementary sequences for multicarrier signals

    H.Ociai, H.Imai

    IEICE Transactions on Fundamentals　Vol. E80-A　No. 11　p. 2136-2143　1997　Research paper (other academic)

  255. On the performance of asynchronous multi-carrier CDMA

    H Ochiai, H Imai

    MULTI-CARRIER SPREAD-SPECTRUM　p. 227-234　1997　Research paper (international conference proceedings)

Misc. 34

  1. Invited Talk : Toward Application of High-Order Coded Modulations to Wireless Communications Systems

    Vol. 116　No. 395　p. 293-298　2017/01/19

    Publisher: 電子情報通信学会

  2. A-6-5 A Scalable Image Transmission System Design Employing Multilevel Coding

    Watanabe Yoshito, Ochiai Hideki

    Proceedings of the IEICE General Conference　Vol. 2014　p. 113-113　2014/03/04

    Publisher: The Institute of Electronics, Information and Communication Engineers

  3. An Analysis of the Multilevel Coded APSK with Memoryless Nonlinearity

    YODA Daiki, OCHIAI Hideki

    Technical report of IEICE. RCS　Vol. 113　No. 386　p. 235-239　2014/01/23

    Publisher: The Institute of Electronics, Information and Communication Engineers

  4. A-6-10 A General Rate-Distortion Model and Its Optimization for Joint Source-Channel Coding

    Watanabe Yoshito, Ochiai Hideki

    Proceedings of the Society Conference of IEICE　Vol. 2012　p. 109-109　2012/08/28

    Publisher: The Institute of Electronics, Information and Communication Engineers

  5. On the Effect of Likelihood Formulation on Coded MIMO System with Sphere Decoding

    TSUBAKI Takuma, OCHIAI Hideki

    Technical report of IEICE. RCS　Vol. 112　No. 89　p. 13-18　2012/06/14

    Publisher: The Institute of Electronics, Information and Communication Engineers

  6. BS-2-4 TWIN-TURBO LIKE NESTED CODE FOR THE MULTIPLE-ACCESS RELAY CHANNEL

    Proceedings of the Society Conference of IEICE　Vol. 2010　No. 1　p. "S-13"-"S-14"　2010/08/31

    Publisher: The Institute of Electronics, Information and Communication Engineers

  7. Implementation and its Evaluation of Multi-level Coded Diversity

    ISHII Koji, ISHIBASHI Koji, OCHIAI Hideki

    IEICE technical report　Vol. 109　No. 440　p. 251-256　2010/02/24

    Publisher: The Institute of Electronics, Information and Communication Engineers

  8. Rate Design Criteria for Multilevel Coded Cooperation

    ISHII Koji, ISHIBASHI Koji, OCHIAI Hideki

    IEICE technical report　Vol. 108　No. 445　p. 161-166　2009/02/25

    Publisher: The Institute of Electronics, Information and Communication Engineers

  9. Design and Analysis of Cyclic Delay Diversity

    ISHIBASHI Koji, ISHII Koji, OCHIAI Hideki

    IEICE technical report　Vol. 108　No. 445　p. 37-42　2009/02/25

    Publisher: The Institute of Electronics, Information and Communication Engineers

  10. A-5-5 Development of Sensor Tag for Impulse-Radio UWB Positioning System

    ASAI Masafumi, SEKIGUCHI Hidenori, FUJII Akira, KURASHIMA Shigemi, OCHIAI Hideki, KOHNO Ryuji

    Proceedings of the IEICE General Conference　Vol. 2008　p. 132-132　2008/03/05

    Publisher: The Institute of Electronics, Information and Communication Engineers

  11. A Study of Forward Error Correction for Energy Detected PPM-UWB Communications

    ISHIBASHI Koji, OCHIAI Hideki, ISHII Koji, KOHNO Ryuji

    IEICE technical report　Vol. 107　No. 402　p. 67-72　2007/12/13

    Publisher: The Institute of Electronics, Information and Communication Engineers

  12. A-5-10 On the Low-Complexity Receiver for Bit-interleaved Coded DAPSK with Cyclic Delay Diversity

    Ishibashi Koji, Ochiai Hideki, Ishii Koji, Kohno Ryuji

    Proceedings of the Society Conference of IEICE　Vol. 2007　p. 129-129　2007/08/29

    Publisher: The Institute of Electronics, Information and Communication Engineers

  13. On the Performance of Space-Time Coding Using MSK with Quasi-Imperfect Synchronization System for the Wireless Sensor Networks

    MITANI Koichi, ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    IEICE technical report　Vol. 106　No. 553　p. 1-6　2007/02/28

    Publisher: The Institute of Electronics, Information and Communication Engineers

  14. A-5-9 Development of Impulse-Radio UWB Positioning System

    FUJII Akira, SEKIGUCHI Hidenori, ASAI Masafumi, KURASHIMA Shigemi, OCHIAI Hideki, KOHNO Ryuji

    Proceedings of the IEICE General Conference　p. 164-164　2007

    Publisher: The Institute of Electronics, Information and Communication Engineers

  15. Performance Analysis of Cyclic Delay Diversity with DAPSK Modulation

    ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    Vol. 29　No. 2　p. 783-786　2006/11/28

  16. On the Performance of Cyclic Delay Diversity with DAPSK Modulation

    ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    IEICE technical report　Vol. 106　No. 305　p. 91-94　2006/10/12

    Publisher: The Institute of Electronics, Information and Communication Engineers

  17. Development of Ultra-Wideband Ranging Technology for Sensor Network

    SEKIGUCHI Hidenori, FUJII Akira, ASAI Masafumi, KURASHIMA Shigemi, OCHIAI Hideki, KOHNO Ryoji

    IEICE technical report　Vol. 105　No. 620　p. 17-20　2006/03/01

    Publisher: The Institute of Electronics, Information and Communication Engineers

  18. Space-Time Block Coding with Node Erasure Robustness for Wireless Sensor Network

    MITANI Koichi, ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    Vol. 28　No. 1　p. 251-254　2005/11/20

  19. On Design of Additional Error Correcting Codes Exploiting Null Bits in Low-Rate Data Stream

    ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    Vol. 28　No. 1　p. 255-258　2005/11/20

  20. B-5-161 On Design of Low-Rate Real-Time Communications based on Bluetooth System

    Ishibashi Koji, Ochiai Hideki, Kohno Ryuji

    Proceedings of the Society Conference of IEICE　Vol. 2005　No. 1　p. 561-561　2005/09/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

  21. Design of Reed-Solomon Code for Clipped OFDM Signals

    MASAKAWA Takahiro, ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    Technical report of IEICE. RCS　Vol. 105　No. 196　p. 85-90　2005/07/14

    Publisher: The Institute of Electronics, Information and Communication Engineers

  22. Space-Time Block Coding with Node Erasure Robustness for Sensor Network

    MITANI Koichi, ISHIBASHI Koji, OCHIAI Hideki, KOHNO Ryuji

    Technical report of IEICE. RCS　Vol. 105　No. 196　p. 91-95　2005/07/14

    Publisher: The Institute of Electronics, Information and Communication Engineers

  23. SA-5-9 A study on Performance of 2-Dimensional PRML Using LDPC Code

    Miidera Wataru, Hayashi Masayuki, Ochiai Hideki, Tsuji Hiroyuki, Wakana Hiromitsu, Ohmori Shingo, Kohno Ryuji

    Proceedings of the IEICE General Conference　Vol. 2004　p. "S-32"　2004/03/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

  24. A-5-35 Super-Orthogonal Convolutional Coding Scheme for UWB Communications in Multipath Environment

    Matsumoto Tomoko, Tsuji Hiroyuki, Wakana Hiromitsu, Ohmori Shingo, Ochiai Hideki, Kohno Ryuji

    Proceedings of the IEICE General Conference　Vol. 2004　p. 174-174　2004/03/08

    Publisher: The Institute of Electronics, Information and Communication Engineers

  25. On Link Capacity Requirements of FPGA Remote Fault Detection Schemes for Software Defined Radio

    TANIGUCHI Motoko, OKUIKE Kazuyuki, OCHIAI Hideki, KOHNO Ryuji

    Vol. 26　No. 1　p. 29-32　2003/12/15

  26. Adaptive resource allocation in Multiuser OFDM with space diversity

    THAMPRAPASUSADON Tarinee, UMEBAYASHI Kenta, OCHIAI Hideki, KOHNO Ryuji

    Vol. 26　No. 2　p. 401-404　2003/12/15

  27. A Study on OFDM Scheme Applying Type-II Hybrid ARQ Using RCPC-code on Power-line Channel

    KURI Kenichi, TSUJI Hiroyuki, WAKANA Hiromitsu, OHMORI Shingo, OCHIAI Hideki, KOHNO Ryuji

    Vol. 26　No. 1　p. 109-112　2003/12/15

  28. Analysis of Multifold Turbo Codes compared to conventional Turbo Codes

    KATSUMA Kimiyasu, OCHIAI Hideki, KOHNO Ryuji

    Vol. 26　No. 2　p. 585-588　2003/12/15

  29. A Study on Super-Orthogonal Convolutional Coding for Ultra Wideband Communications

    MATSUMOTO Tomoko, TSUJI Hiroyuki, WAKANA Hiromitsu, OHMORI Shingo, OCHIAI Hideki, KOHNO Ryuji

    Vol. 26　No. 2　p. 679-682　2003/12/15

  30. Joint Decoding of 2-Dimensional PR Channel and LDPC Code

    MIIDERA Wataru, OCHIAI Hideki, TSUJI Hiroyuki, WAKANA Hiromitsu, OHMORI Shingo, KOHNO Ryuji

    Vol. 26　No. 1　p. 137-140　2003/12/15

  31. A study on Synchronization Error Correct Method for 2 Dimensional PRML

    Miidera Wataru, Hayashi Masayuki, Ochiai Hideki, Tsuji Hiroyuki, Wakana Hiromitsu, Ohmori Shingo, Kohno Ryuji

    Proceedings of the Society Conference of IEICE　Vol. 2003　No. 2　p. 26-26　2003/09/10

    Publisher: The Institute of Electronics, Information and Communication Engineers

  32. A Study on Fault Detecting of FPGA Using Error Correcting Codes for Software Defined Radio Systems

    TANIGUCHI Motoko, OKUIKE Kazuyuki, OCHIAI Hideki, KOHNO Ryuji

    Proceedings of the Society Conference of IEICE　Vol. 2003　p. 129-129　2003/09/10

    Publisher: The Institute of Electronics, Information and Communication Engineers

  33. A Study on OFDM Scheme Considering Allocation Between Modulation and Coding Scheme on Power-line Channel

    Kuri Kenichi, Tsuji Hiroyuki, Wakana Hiromitsu, Ohmori Shingo, Ochiai Hideki, Kohno Ryuji

    Proceedings of the Society Conference of IEICE　Vol. 2003　No. 2　p. 284-284　2003/09/10

    Publisher: The Institute of Electronics, Information and Communication Engineers

  34. A Study on Coding and Decoding Scheme According to Channel State in Digital Magnetic Recording

    HAYASHI Masayuki, OCHIAI Hideki, KOHNO Ryuji

    IEICE technical report. Information theory　Vol. 103　No. 214　p. 73-77　2003/07/15

    Publisher: The Institute of Electronics, Information and Communication Engineers

Publications 4

  1. Collaborative beamforming

    Hideki Ochiai, Hideki Imai

    New Directions in Wireless Communications Research, V. Tarokh (Editor), Springer　2009　Scholarly book

  2. Random Array Theory and Collaborative Beamforming

    P. Mitran, H. V. Poor, V. Tarokh

    C. Sun, J. Cheng, and T. Ohira (Editors), Handbook on Advancements in Smart Antenna Technologies for Wireless Networks　2008　Scholarly book

  3. Cooperation, competition and cognition in wireless networks

    O. -S. Shin, N. Devroye, P. Mitran, S. S. Ghassemzadeh, H. T. Kung, V. Tarokh

    F. H. P. Fitzek and M. D. Katz (Editors), Cooperation in Wireless Networks: Principles and Applications, Springer　2006　Other

  4. OFDM変調方式の応用

    松本渉

    トリケップス社　2001　Scholarly book

Institutional Repository 2

Content Published in the University of Osaka Institutional Repository (OUKA)

  1. Sparse Bayesian Learning Using Complex t-Prior for Beam-Domain Massive MIMO Channel Estimation

    Furuta Kengo, Takahashi Takumi, Ochiai Hideki

    IEEE Open Journal of the Communications Society　Vol. 5　p. 5905-5920　2024/09/10

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