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多用户准正交空时分组码MIMO系统的下行链路预编码

曹颖鸿 殷福亮 陈喆

曹颖鸿, 殷福亮, 陈喆. 多用户准正交空时分组码MIMO系统的下行链路预编码[J]. 电子与信息学报, 2009, 31(7): 1560-1564. doi: 10.3724/SP.J.1146.2008.00842
引用本文: 曹颖鸿, 殷福亮, 陈喆. 多用户准正交空时分组码MIMO系统的下行链路预编码[J]. 电子与信息学报, 2009, 31(7): 1560-1564. doi: 10.3724/SP.J.1146.2008.00842
Cao Ying-hong, Yin Fu-liang, Chen Zhe. Downlink Precoding for Multi-user Quasi-orthogonal Space Time Block Coded MIMO System[J]. Journal of Electronics & Information Technology, 2009, 31(7): 1560-1564. doi: 10.3724/SP.J.1146.2008.00842
Citation: Cao Ying-hong, Yin Fu-liang, Chen Zhe. Downlink Precoding for Multi-user Quasi-orthogonal Space Time Block Coded MIMO System[J]. Journal of Electronics & Information Technology, 2009, 31(7): 1560-1564. doi: 10.3724/SP.J.1146.2008.00842

多用户准正交空时分组码MIMO系统的下行链路预编码

doi: 10.3724/SP.J.1146.2008.00842

Downlink Precoding for Multi-user Quasi-orthogonal Space Time Block Coded MIMO System

  • 摘要: 该文针对采用准正交空时分组码的多用户多输入多输出(QSTBC-MU-MIMO)系统,给出一种基于信漏噪声比(SLNR)准则的下行链路干扰抑制预编码方法。通过迭代优化,该文方法可以改善原始SLNR方法中由干扰用户增加所引起的系统性能下降问题,增强了算法对系统用户数的鲁棒性。由于在优化目标中考虑了系统噪声,该方法可通过恰当选取复比例因子来实现优化问题的简化求解。仿真结果验证了该文方法的有效性。
  • Badic B, Rupp M, and Weinrichter H. Quasi-orthogonalspace-time block codes: approaching optimality [C].Proceedings of the 13th European Signal ProcessingConference, Antalya, Turkey, Sept. 2005: 1-8.[2]Chen R, Andrews J G, and Heath R W. Multiuser space-timeblock coded MIMO system with downlink precoding [C].IEEE International Conference on Communications 2004,Paris, France, June 2004: 2689-2693.[3]Schubert M and Boche H. Solution of the multiuser downlinkbeamforming problem with individual SINR constraints [J].IEEE Transactions on Vehicular Technology.2004, 53(1):18-28[4]Tarighat A, Sadek M, and Sayed A H. A multi-userbeamforming scheme for downlink MIMO channels based onmaximizing signal-to-leakage ratios [C]. ICASSP '05,Pennsylvania, USA, March 2005: iii/1129-iii/1132.[5]Sadek M, Tarighat A, and Sayed A H. A leakage-basedprecoding scheme for downlink multi-user MIMO channels [J].IEEE Transactions on Wireless Communications.2007, 6(5):1711-1721[6]Tran T A and Sesay A B. Quasi-orthogonal STBCs withembedded linear processing at the receiver [C]. IEEE PacificRim Conference on Communications, Computers and SignalProcessing 2003, Victoria, BC, Canada, Aug. 2003: 376-379.[7]Tirkkonen O, Boariu A, and Hottinen A. Minimal nonorthogonalityrate 1 space-time block code for 3+ Txantennas [C]. ISSSTA 2000, New Jersey, Sept. 2000: 429-432.[8]张贤达. 矩阵分析与应用 [M]. 北京: 清华大学出版社, 2004:540-541.
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出版历程
  • 收稿日期:  2008-07-03
  • 修回日期:  2009-01-19
  • 刊出日期:  2009-07-19

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