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采用天线选择的多用户MIMO-OFDM系统容量研究 被引量：1

Capacity for Multiuser MIMO-OFDM Systems with Antenna Selection
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摘要 对于采用线性预编码进行空分复用的多用户MIMO-OFDM系统的下行链路,分析了使用户间干扰完全消除的预编码矩阵设计实现过程,提出了用户端联合天线选择算法,以增大发送的数据流数,提高系统和容量,在此基础上提出了逐次递增确定用户天线的选择算法。仿真结果表明,本文所提的天线选择算法使系统和容量远高于未经天线选择时的和容量,并且次优的逐次选择算法在计算量可接受的情况下与最优联合选择算法相比获得的容量增益相差不大。 For multiuser MIMO-OFDM system downlink with linear precoder to implement spatial multiplexing, the precoding ma- trix designing principle is analyzed and antenna selection algorithm at users＇ side is proposed to increase the data streams to transmit and the sum capacity of the system, after that a suboptimal selection algorithm operated user by user is proposed. Simulation results showed that the system capacity obtained via antenna selection is larger than the capacity without antenna selection, and the suboptimal algorithm can achieve almost the same performance as the optimal one, with acceptable complexity.
作者 马月槐 蔡跃明 徐友云
机构地区 解放军理工大学通信工程学院无线通信系 总参通信训练基地卫星教研室
出处 《信号处理》 CSCD 北大核心 2009年第1期34-39,共6页 Journal of Signal Processing
基金 江苏自然科学基金资助项目(BK2006701) 国家自然科学基金资助项目(No．60672079)
关键词 线性预编码 多用户MIMO-OFDM系统 天线选择 Linear precoder multiuser MIMO-OFDM system antenna selection
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献11

  • 1R. Berezdivin, R. Breinig et al. ," Next-generation wireless communications concepts and technologies", IEEE Communication Magazine, No. 3,2002, pp. 108-116.
  • 2H. Sampath, S. Talwar, J. Tellado, et al. , “A fourth-generation MIMO-OFDM broadband wireless system:design, performance, and field trial results”, IEEE Communication Magazine, No. 9,2002, pp. 143-149.
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同被引文献18

  • 1Telatar E . Capacity of multi-antenna gaussian channels [J]. Eur. Trans. Telecomm. , 1999, 10: 585-598.
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  • 3Tarighat A, Sadek M, Sayed A H . A Multiuser beam- forming scheme for downlink MIMO channels based on maximizing signal-to-leakage ratios [ C ]//IEEE Interna- tional Conference on Acoustics, Speech, Signal Process- ing, USA, 2005:1129-1132.
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  • 5Nguyen D, Tran Le-Nam Tran, Pirinen P, et al. Trans- mission Strategies for Full Duplex Multiuser MIMO Sys- tems [ C ]//IEEE International Conference on Communi- cations, 2012 : 6825-6829.
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  • 7Jain M, Choi J I, Kim T, et al. Practical, real-time, full duplex wireless[C]//The 17th Annual International Confer- ence on Mobile Computing and Networking, 2011: 301-312.
  • 8Bliss D, Parker P A, Margetts A R. Simultaneous trans- mission and reception for improved wireless network per- formanee[ C]//The IEEE 14th Workshop on Statist. Sig- nal Process. , 2007: 478-482.
  • 9Day B, Margetts A, Bliss D, et al. Full-duplex bidirec- tional MIMO: Achievable rates under limited dynamic range[J]. IEEE Trans. Signal Process. , 2012, 60(7) : 3702-3713.
  • 10Jain M, Choi J I, Kim T M, et al. Practical, real-time, full duplex wireless[C]//The Mobicom' 11, 2011 : 301-312.

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信号处理
2009年 第1期

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