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时间相干信道下波束赋形系统的有限反馈方法

吴敏 沈超 裘正定

吴敏, 沈超, 裘正定. 时间相干信道下波束赋形系统的有限反馈方法[J]. 电子与信息学报, 2009, 31(10): 2343-2347. doi: 10.3724/SP.J.1146.2008.01504
引用本文: 吴敏, 沈超, 裘正定. 时间相干信道下波束赋形系统的有限反馈方法[J]. 电子与信息学报, 2009, 31(10): 2343-2347. doi: 10.3724/SP.J.1146.2008.01504
Wu Min, Shen Chao, Qiu Zheng-ding. Limited Feedback Approach in Beamforming System over Temporally-correlated Channels[J]. Journal of Electronics & Information Technology, 2009, 31(10): 2343-2347. doi: 10.3724/SP.J.1146.2008.01504
Citation: Wu Min, Shen Chao, Qiu Zheng-ding. Limited Feedback Approach in Beamforming System over Temporally-correlated Channels[J]. Journal of Electronics & Information Technology, 2009, 31(10): 2343-2347. doi: 10.3724/SP.J.1146.2008.01504

时间相干信道下波束赋形系统的有限反馈方法

doi: 10.3724/SP.J.1146.2008.01504

Limited Feedback Approach in Beamforming System over Temporally-correlated Channels

  • 摘要: 该文提出一种新的基于树形码书的有限反馈方法,由于相邻帧的时间相干性,信道向量的量化码字可建模为一阶有限状态马尔可夫链,当前帧信道向量被量化到前一帧最大转移概率码字的子码字上,该子码字的索引以1 bit反馈给发射端。链路仿真结果表明本文所提方法相比普通反馈方法可明显改善误码率性能,某些条件下还可降低反馈速率。
  • Love D J, Heath R W, and Lau V K N, et al.. An overview oflimited feedback in wireless communication systems[J].IEEEJournal on Selected Areas in Communications.2008, 26(8):1341-1365[2]Jindal N. MIMO broadcast channels with finite rate feedback[J].IEEE Transactions on Information Theory.2006, 52(11):5045-5059[3]Choi J, Mondal B, and Heath R W. Interpolation basedunitary precoding for spatial multiplexing MIMO-OFDMwith limited feedback[J].IEEE Transactions on SignalProcessing.2006, 54(12):4730-4740[4]Huang Kai-bin, Mondal B, and Heath R W, et al..Multi-antenna limited feedback for temporally-correlatedchannels: Feedback compression. Global TelecommunicationsConference, (GLOBECOM ), San Francisco, CA, USA, Nov.27-Dec.1, 2006, WLC38-5: 1-5.[5]Simon C and Leus G. Feedback reduction for spatialmultiplexing with linear precoding. IEEE InternationalConference on Acoustics, Speech and Signal Processing(ICASSP ), Honolulu, Hawai'i, USA, April 15-20, 2007, 3:33-36.[6]Paulraj A, Nabar R, and Gore D. Introduction to Space-TimeWireless Communications. First Published, United Kingdom:Cambridge University Press, 2003: 65-75.[7]Love D J, Heath R W, and Strohmer T. Grassmannianbeamforming for multiple-input multiple-output wirelesssystems[J].IEEE Transactions on Information Theory.2003,49(10):2735-2747[8]Murthy C R and Rao B D. Quantization methods for equalgain transmission with finite rate feedback[J].IEEETransactions on Signal Processing.2007, 55(1):233-245[9]Huang Kai-bin, Mondal B, and Heath R W, et al.. Markovmodels for limited feedback MIMO systems. IEEEInternational Conference on Acoustics, Speech and SignalProcessing (ICASSP), Toulouse, France, May 15-19, 2006, 4:IV-IV.
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出版历程
  • 收稿日期:  2008-11-14
  • 修回日期:  2009-05-29
  • 刊出日期:  2009-10-19

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