publications

学術論文誌

Wladimir Bocquet, Kazunori Hayashi and Hideaki Sakai,"Power Allocation Evaluation for MIMO Coded MC-CDMA Systems with Two Dimensional Spreading," Wireless Communications and Mobile Computing (conditional acceptance, minor revision).
Yuki Yoshida, Kazunori Hayashi, Hideaki Sakai, and Wladimir Bocquet, "Analysis and Compensation of Transmitter IQ Imbalances in OFDMA and SC-FDMA Systems," IEEE Transactions on Signal Processing (accepted).
Wladimir Bocquet, Kazunori Hayashi and Hideaki Sakai,"Power Distribution Methods for MIMO-OFDM Systems and Field Experimentations," Wireless Communications and Mobile Computing (accepted).
Wladimir Bocquet, Kazunori Hayashi and Hideaki Sakai, "A Novel Power Distribution Scheme Combined with Adaptive Modulation Based on Subcarrier Grouping for OFDM Systems,"IEICE Transactions on Communications, Vol. E91-B, No. 12, pp. 3974-3982, (Dec. 2008).
Wladimir Bocquet, Kazunori Hayashi and Hideaki Sakai, "Systematic Design of Single Carrier Overlap Frequency Domain Equalization," Journal of Systems Science and Complexity (accepted).
Megumi Kaneko, Petar Popovski and Kazunori Hayashi, "Throughput-Guaranteed Resource Allocation Algorithms for Relay-aided Cellular OFDMA System," IEEE Transactions on Vehicular Technology (accepted).
Megumi Kaneko, Kazunori Hayashi, Petar Popovski, Kazushi Ikeda, Hideaki Sakai and Ramjee Prasad, "Amplify-and-Forward Cooperative Diversity Schemes for Multi-Carrier Systems," IEEE Transactions on Wireless Communications, vol. 7, no. 5, part 2, pp. 1845-1850, (May 2008).
Kazunori Hayashi and Hideaki Sakai, "Interference Cancellation Schemes for Single Carrier Block Transmission with Insufficient Cyclic Prefix," EURASIP Journal on Wireless Communications and Networking, vol. 2008, Article ID 130747, 12 pages, 2008. doi:10.1155/2008/130747.
林　和則, 酒井英昭, "サイクリックプレフィックスを用いたブロック伝送方式と信号歪み補償技術," 電子情報通信学会論文誌(B), Vol.J91-B, No.2, pp. 129-139, (Feb. 2008). (招待論文)
Yuki Yoshida, Kazunori Hayashi, and Hideaki Sakai, "Pre- and Post-Equalization and Frequency Diversity Combining Methods for Block Transmission with Cyclic Prefix," IEICE Transactions on Communications, Vol. E90-B, No. 10, pp. 2874-2883, (Oct. 2007).
Shinsuke Hara, Hiroyuki Yomo, Petar Popovshi, and Kazunori Hayashi, "New Paradigms in Wireless Communication Systems," Wireless Personal Communications, Vol.37, Nos.3-4, pp. 233-241, (May 2006).
Kazunori Hayashi and Hideaki Sakai, "Per-Tone Equalization for Single Carrier Block Transmission with Insufficient Cyclic Prefix," IEICE Transactions on Information and Systems, Vol.E88-D, No.7, pp. 1323-1330, (July 2005).
林和則, 小嶌卓, 酒井英昭, "サイクリックプリフィックスを用いたシングルキャリア無線通信システムのためのアダプティブアレーアンテナ," 電子情報通信学会論文誌(B), Vol. J87-B, No.7, pp. 940-949, (2004年7月).
林和則, 原晋介, "アダプティブアレーと判定帰還型等化器のカスケード構成による時空間等化法," 電子情報通信学会論文誌(B), Vol. J85-B, No.6, pp. 900-909, (2002年6月).
Kazunori Hayashi and Shinsuke Hara, "A New Spatio-Temporal Equalization Method Based on Estimated Channel Response," IEEE Transactions on Vehicular Technology, Vol. 50, pp. 1250-1259, (Sept. 2001).
林和則, 村島伸幸, 原晋介, 三瓶政一, 森永規彦, "抑圧パイロット信号を用いたビームフォーミング法," 電子情報通信学会論文誌(B), Vol. J81-B-I, No.11, pp. 661-670, (1998年11月).

解説・チュートリアル

林和則, "変復調と等化方式の基礎： Fundamentals of Modulation/Demodulation and Equalization Technologies," 2004 Microwave Workshops and Exhibition (MWE2004), (2004年11月)プレゼン資料
酒井英昭, 林和則, "ブロック伝送と周波数領域等化: Block Signal Transmission and Frequency Domain Equalization," 電子情報通信学会誌, Vol.87, No. 10, pp.855-860, (2004年10月)

研究速報

河本孝生, 岩田一貴, 池田和司, 林和則, 酒井英昭,"EM アルゴリズムを用いた確率的通信路に対する適応等化法," システム制御情報学会論文誌, Vol. 17, No.3, pp. 139-141, (2004年3月).

国際会議

Megumi Kaneko, Petar Popovski and Kazunori Hayashi, "PFS-based Resource Allocation Algorithms for an OFDMA System with Multiple Relays,"Proceedings of the 19th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC2008), Cannes, France, (Sept. 2008).
Yuki Yoshida, Kazunori Hayashi, and Hideaki Sakai, "Blind Marginalized Particle Filtering Detector for the Systems with IQImbalance and Carrier Frequency Offset," Proceedings of the 16th European Signal Processing Conference (EUSIPCO2008), Lausanne, Switzerland, (Aug. 2008).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "On the systematic block size adaptation for coded single carrier overlap frequency domain equalization systems," Proceedings of IEEE International Symposium on Image and Video Communications over Fixed and Mobile Networks (ISIVC 2008), Bilbao, Spain, (July 2008).
Kazunori Hayashi and Hideaki Sakai, "Co-channel Interference Cancellation for Downlink Block Transmission with Cyclic Prefix," Proceedings of the 2008 IEEE 67th Vehicular Technology Conference (VTC2008Spring), pp. 703-707, Marina Bay, Singapore (May 2008).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "Combined Frequency and Spatial Domains Power Distribution for MIMO-OFDM Transmission," Proceedings of the 2007 IEEE 18th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC2007), Athens, Greece, (Sept. 2007).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "Parallel interference canceller with adaptive MMSE equalization for MIMO-OFDM transmission," Proceedings of International OFDM Workshop 2007, pp.261-265, Hamburg, Germany, (Aug. 2007).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "On the SIC detection with adaptive MMSE equalization for MIMO-OFDM transmissions," Proceedings of IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS 2007), Hsinchu, Taiwan, (Aug. 2007).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "On the Block Size Design for Single Carrier Overlap Frequency Domain Equalization," Proceedings of IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS 2007), Hsinchu, Taiwan, (Aug. 2007).
Kazunori Hayashi and Hideaki Sakai, "Downlink Channel Estimation for Multi-cell Block Transmission Systems with Cyclic Prefix," Proceedings of the 2007 IEEE 65th Vehicular Technology Conference (VTC2007Spring), pp. 1776-1780, (Apr. 2007).
Wladimir Bocquet, Kazunori Hayashi and Hideaki Sakai, "Power Allocation Scheme for MIMO MC-CDMA with Two Dimensional Spreading," Proceedings of the 2007 IEEE 65th Vehicular Technology Conference (VTC2007Spring), pp. 3145-3149, (Apr. 2007).
Kazunori Hayashi and Hideaki Sakai, "Uplink Channel Estimation for OFDMA Systems," Proceedings of the 2007 IEEE 32nd International Conference on Acoustics, Speech, and Signal Processing (ICASSP2007), vol. 3, pp. 15-20, (Apr. 2007).
Kazunori Hayashi, Kengo Shirai, Thanongsak Himsoon, W. Pam Siriwongpairat, Ahmed K. Sadek, K. J. Ray Liu, and Hideaki Sakai, "Optimum Relay Position for Differential Amplify-and-Forward Cooperative Communications," Proceedings of the 9th International Symposium On Wireless Personal Multimedia Communications (WPMC2006), pp. 766-770, (Spt. 2006).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "A Power Allocation Scheme for M-QAM modulated MIMO-OFDM Systems," Proceedings of the 9th International Symposium On Wireless Personal Multimedia Communications (WPMC2006), pp. 322-325, San Diego, USA, (Sept. 2006).
Kazunori Hayashi and Hideaki Sakai, "Single Carrier Block Transmission without Guard Interval," Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC2006), pp. 1-5, (Sept. 2006).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "Frequency Domain Power Adaptation Scheme for Multi-Carrier Systems," Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC2006), Helsinki, Finland, (Sept. 2006).
Hideaki Sakai, Tetsuya Oka, and Kazunori Hayashi, "A Simple Adaptive Filter Method for Cancellation of Coupling Wave in OFDM Signals at SFN Relay Station," Proceedings of the 14th European Signal Processing Conference (EUSIPCO2006), Florence, Italy, (Sept. 2006).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "Power Allocation Scheme for Coded MIMO Multi-Carrier Systems," Proceedings of International OFDM Workshop 2006, pp. 96-100, Hamburg, Germany, (Aug. 2006).
Wladimir Bocquet, Kazunori Hayashi, and Hideaki Sakai, "Combined Phase Compensation and Power Distribution for Multi-Carrier Modulation," Proceedings of International OFDM Workshop 2006, pp.283-287, Hamburg, Germany, (Aug. 2006).
Kazunori Hayashi and Hideaki Sakai, "A Burst Noise Cancellation Scheme for Single Carrier Block Transmission with Cyclic Prefix," Proceedings of the 2006 IEEE 63rd Vehicular Technology Conference (VTC2006Spring), vol. 5, pp. 2543-2547, (May. 2006).
W. Bocquet, K. Hayashi, and H. Sakai, "A Power Allocation Scheme for MIMO-OFDM Systems," Proceedings of IEEE-EURASIP International Symposium on Control, Communications, and Signal Processing (ISCCSP 2006), Marrakech, Morocco, March 2006 (Invited Paper).
Kazunori Hayashi and Hideaki Sakai, "A Subtractive Interference Cancellation Scheme for Single Carrier Block Transmission with Insufficient Cyclic Prefix," Proceedings of the 8th International Symposium On Wireless Personal Multimedia Communications (WPMC2005), vol. 1, pp. 706-710. (Sept. 2005).
Yuki Yoshida, Kazunori Hayashi and Hideaki Sakai, "Fractionally Spaced Equalization and Frequency Diversity Methods for Block Transmission with Cyclic Prefix," Proceedings of the 2nd IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS2005), (Aug. 2005).
Kazunori Hayashi and Hideaki Sakai, "Interference Elimination and Channel Estimation Schemes for Single Carrier Block Transmission with Insufficient Cyclic Prefix," Proceedings of the 36th International Symposium on Stochastic Systems Theory and Its Applications (SSS'04), (Nov. 2004).
Kazunori Hayashi and Hideaki Sakai, "A Simple Interference Elimination Scheme for Single Carrier Block Transmission with Insufficient Cyclic Prefix," Proceedings of the 7th International Symposium On Wireless Personal Multimedia Communications (WPMC2004), vol. 2, pp. 577-581, Abano Terme, Italy, (Sept. 2004).
Kazunori Hayashi and Hideaki Sakai, "Per-Tone Equalization for Single Carrier Block Transmission with Cyclic Prefix," Proceedings of the 47th IEEE International Midwest Symposium On Circuits and Systems, vol. 2, pp. 649-652, Hiroshima, JAPAN, (July 2004).
Kazunori Hayashi, Taku Kojima and Hideaki Sakai, "A New Beamforming Method for Single Carrier Modulation System with Cyclic Prefix," Proceedings of the 6th Baiona Workshop on Communications, pp. 75-80, Baiona, SPAIN, (Sept. 2003).
Kazunori Hayashi, Taku Kojima and Hideaki Sakai, "An Adaptive Antenna Array for Single Carrier Modulation System with Cyclic Prefix," Proceedings of IEEE Vehicular Technology Conference (VTC2003-Spring), vol. 2, pp. 1015-1019, Jeju, KOREA, (Apr. 2003).
Kazunori Hayashi and Shinsuke Hara, "A Spatio-Temporal Equalization Method for Indoor Wireless LANs with Beamforming Criterion Selection," Proceedings of IEEE Vehicular Technology Conference (VTC2001-Fall), pp.506-510, Atlantic City, USA, (Oct. 2001).
Kazunori Hayashi and Shinsuke Hara, "A Spatio-Temporal Equalization Method for 60 GHz Indoor Wireless Local Area Networks," Proceedings of the 12th International Symposium on Personal, Indoor and Mobile Radio Communications　(PIMRC2001), D4-4, San Diego, USA, (Sept. 2001).
Kazunori Hayashi and Shinsuke Hara, "A Spatio-Temporal Equalization Method with Beamforming Criterion Selectability," Proceedings of Asia Pacific Conference on Communications (APCC 2001), pp. 364-367, Tokyo, Japan (Sept. 2001)
Toyokazu Kitano, Kazunori Hayashi, Hitoshi Masutani and Shinsuke Hara, "Hardware Design of Filter Bank-Based Narrowband/Wideband Interference Canceller for Overlaid TDMA/CDMA Systems," Proceedings of IEEE Vehicular Technology Conference (VTC) 2000-Spring, pp.1095-1099, Tokyo, Japan, (May 2000).
Kazunori Hayashi and Shinsuke Hara, "A New Spatio-Temporal Equalization Method Using Estimated Channel Impulse Response," Proceedings of IEEE Vehicular Technology Conference (VTC) 2000-Spring, vol. 3, pp.2477-2481, Tokyo, Japan, (May 2000).
Kazunori Hayashi and Shinsuke Hara, "A New Spatio-Temporal Equalization Method without DoA Information," Proceedings of the 10th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'99), pp. 780-784, Osaka, Japan, (Sept. 1999).
Kazunori Hayashi and Shinsuke Hara, "A New Beamforming Method Using Second Order Statistics-Based Blind Channel Identification," Proceedings of the First International Symposium on Wireless Personal Multimedia Communications (WPMC'98), pp. 364-369, Yokosuka, Japan, (Nov. 1998).

国内学会

Yuki Yoshida, Kazunori Hayashi, Hideaki Sakai, "On the impact of Tx IQ imbalance on OFDMA and SC-FDMA receivers," 信学技報, vol. 108, no. 164, SIP2008-80, WBS2008-12, pp. 19-24, (2008年7月)
Megumi Kaneko, Kazunori Hayashi, Petar Popovski, Kazushi Ikeda, Hideaki Sakai, Ramjee Prasad, "Amplify-and-Forward cooperative diversity schemes for multi-carrier systems and outage analysis," 信学技報, NC2008-5, pp.23-28, (2008年5月)
平岡裕章, 荒井迅, 林和則, "Mayer-Vietoris 完全系列のセンサーネットワークへの応用," 日本数学会, 応用数学分科会, (2008年3月)
Yuki Yoshida, Kazunori Hayashi, Hideaki Sakai, "IQ imbalance compensation for IFDMA systems," 信学技報, CAS2007-158 SIP2007-233 CS2007-123, pp.141-146, (2008年3月)
深谷直紀,林　和則, ペーターポポフスキー, 酒井英昭, "Amplify-and-Forward法を用いたマルチホップ無線ネットワークコーディングのための分散リレーアルゴリズム,"信学会信号処理研究会, 信学技報, vol. 107, no. 438, SIP2007-154, (2008年1月)
Kengo Shirai, Kazunori Hayashi, Hideaki Sakai, "Relay-Assignment Algorithm for Amplify-and-Forward Cooperative Communications,"信学会無線通信システム研究会, 信学技報, vol. 106, no. 475, RCS2006-193, (2007年1月)
Wladimir Bocquet, Kazunori Hayashi, Hideaki Sakai, "A Simple Power Distribution Scheme for MC-CDMA With Two Dimensional Spreading," 信学技報, SIP2006-148 RCS2006-206 pp.67-72, (2007年1月)
岡鉄也, 酒井英昭, 林和則, "適応フィルタを用いた地上デジタル放送向け回り込みキャンセラの実現," 信学技報, CAS2006-14 VLD2006-27 SIP2006-37, pp.37-41, (2006年6月)
吉田悠来, 林和則, 酒井英昭, "サイクリック・プレフィックスを用いたブロック伝送のための送信等化及び周波数ダイバーシチ合成法," 信学技報, RCS2005-184, pp.37-42, (2006年3月)
鮫島範行, 吉田悠来, 林　和則, 酒井英昭 "サイクリックプリフィックスを用いたブロック伝送方式のための分数間隔等化法～ビット誤り率特性解析～," 信学会無線通信システム研究会, 信学技報, vol. 104, no. 680, RCS2004-394, pp. 25-30, (2005年3月)
吉田悠来, 鮫島範行, 林和則, 酒井英昭 "サイクリックプリフィックスを用いたブロック伝送方式のための分数間隔等化法～最適ウェイトの導出～," 信学会無線通信システム研究会, 信学技報, vol. 104, no. 680, RCS2004-393, pp. 19-24, (2005年3月)
林和則, 小嶌卓, 酒井英昭 "An Adaptive Antenna Array for Single Carrier Modulation with Cyclic Prefix," 2003 ディジタル信号処理シンポジウム, (2003年11月)
鬼木洋平, 林和則, 酒井英昭 "時空間ブロック符号の単一搬送波周波数領域等化システムへの適用," 2003 信学ソサイエティ大, B-5-28, (2003年9月)
小嶌卓, 林和則, 酒井英昭 "サイクリックプリフィックスを用いた単一搬送波無線通信システムのためのアダプティブアレーに関する一検討," 信学会無線通信システム研究会, 信学技報, RCS2002-339, (2003年3月)
林和則, 原晋介, "アダプティブアレーと判定帰還型等化器を用いた時空間等化法の検討," 信学会無線通信システム研究会, 信学技報, RCS2001-138, (2001年10月)
林和則, 原晋介, "屋内無線LANシステムのための時空間等化法", 2001 信学総大, B-5-243 (2001年3月)
林和則, 原晋介, "60GHz帯無線LANシステムにおける時空間等化法の検討,"信学会無線通信システム研究会, 信学技報, RCS2000-253, (2001年3月)
Kazunori Hayashi and Shinsuke Hara, "An Adaptive Spatio-Temporal Equalization Method Based on Estimated Channel Impulse Response," 2000 信学ソサイエティ大, B-5-52 (2000年9月)