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基于迭代信道软信息的编码MIMO检测

徐瑨 陶小峰 张平

徐瑨, 陶小峰, 张平. 基于迭代信道软信息的编码MIMO检测[J]. 电子与信息学报, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202
引用本文: 徐瑨, 陶小峰, 张平. 基于迭代信道软信息的编码MIMO检测[J]. 电子与信息学报, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202
Xu Jin, Tao Xiao-feng, Zhang Ping. Coded MIMO Detection Based on Iterative Channel Soft Information[J]. Journal of Electronics & Information Technology, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202
Citation: Xu Jin, Tao Xiao-feng, Zhang Ping. Coded MIMO Detection Based on Iterative Channel Soft Information[J]. Journal of Electronics & Information Technology, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202

基于迭代信道软信息的编码MIMO检测

doi: 10.3724/SP.J.1146.2007.01202
基金项目: 

国家自然科学基金(60702051),国家863计划项目(2006AA01Z260,2007AA01Z261)和教育部新世纪优秀人才支持计划(NCET-05-0116)资助课题

Coded MIMO Detection Based on Iterative Channel Soft Information

  • 摘要: 该文针对编码MIMO系统,分析了MIMO检测过程中串行干扰删除引入的误差传播对软解调的影响,同时,借鉴软符号干扰消除的思想,推导出该系统中迭代信道软信息(Iterative Channel Soft Information, ICSI)的计算方法,并证明了该信道软信息等价于信道矩阵广义逆的行范数的倒数。理论分析及仿真表明,该文所述基于ICSI的编码MIMO检测算法可以在不增加任何额外运算量的前提下,显著改善编码MIMO系统的性能。
  • Recommendation ITU-R M.1645. Framework and overallobjectives of the future development of IMT-2000 and systembeyond IMT-2000[S], 2003.[2]Zhang Ping, Tao Xiaofeng, and Zhang Jianhua, et al.. Thevisions from FuTURE beyond 3G TDD. IEEECommunications Magazine, 2005, 43(1): 38-44.[3]Telatar I E. Capacity of multi-antenna Gaussian channels[J].European Trans. on Telecommunications.1999, 10(6):585-595[4]Foschini G J and Gans M J. On limits of wirelesscommunications in a fading environment when using multipleantennas[J].Wireless Personal Communications.1998, 6(3):311-335[5]Berrou C and Glavieux A. Near optimum error-correctingcoding and decoding: Turbo codes[J].IEEE Trans. onCommunications.1996, 44(10):1261-1271[6]Sellathurai M and Haykin S. Turbo-BLAST for wirelesscommunications: Theory and experiments[J].IEEE Trans. onSignal Processing.2002, 50(10):2538-2546[7]Foschini G J. Layered space-time architecture for wirelesscommunication in a fading environment when usingmulti-element antennas[J].Bell Labs Technical Journal.1996,1(2):41-59[8]Wolniansky P W, Foschini G J, and Golden G D, et al..V-BLAST: An architecture for realizing very high data ratesover the rich-scattering wireless channel. IEEE InternationalSymposium on Secure Software Engineering, Pisa, Italia,1998: 295-300.[9]Golden G D and Foschini G J. Detection algorithm and initiallaboratory results using V-BLAST space-timecommunication architecture[J].Electron. Letter.1999, 35(1):14-16[10]Li Yabo and Xia Xianggen. Iterative demodulation/decodingmethods based on Gaussian approximation for Lattice basedspace-time coded systems. IEEE Trans. on WirelessCommunications, 2006, 5(8): 1976-1983.[11]王小东.[J].Poor H V 等. 无线通信系统信号接收与处理的高级技术. 北京: 电子工业出版社.2005,:-[12]程云鹏, 张凯院, 徐仲等. 矩阵论. 第3 版, 西安: 西北工业大学出版社, 2006: 315-319.Cheng Yun-peng, Zhang Kai-yuan, and Xu Zhong, et al..Matrix Theory. 3rd Edition, Xian: NorthwestenPolytechnical University Press, 2006: 315-319.[13][13] 3GPP TS 25.222, Multiplexing and channel coding (TDD)(V6.2.0)[S]. 2004.
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出版历程
  • 收稿日期:  2007-07-16
  • 修回日期:  2008-01-27
  • 刊出日期:  2009-01-19

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