多用户MIMO双向中继信道鲁棒预编码  

Robust Relay Pre-coding for Multiuser MIMO Two-way Relay Systems

作　　者：周围[1,2] 贾娜[1] 王新青[1] 

机构地区：[1]重庆邮电大学移动通信技术重庆市重点实验室,重庆400065 [2]重庆邮电大学光电工程学院,重庆400065

出　　处：《电视技术》2014年第15期175-177,共3页Video Engineering

基　　金：国家"863"计划项目(2009AA011302);重庆邮电大学研究生教育创新计划重点项目(Y201019);重庆市教委科研项目(K1090513)

摘　　要：在多用户MIMO双向中继系统中,若使用非理想信道模型,中继处仅能获得部分下行信道状态信息,这样将导致系统性能大幅度下降。由此提出基于最小信干噪比最大化的鲁棒预编码方案。仿真表明,该方案不仅可以使最差信干噪比最大化,也有效地改善了系统的比特误码率性能。In muhiuser MIMO two-way relay systems, if the non-ideal channel model is used, the CSI information collected at the relay may not be perfect. Then the system performance is significantly degraded. So in this paper, the robust linear pre-coding which to maximize the minimum worstcase signal-to-interference-plus-noise-ratio of multiple pairs of users subject to a total relay power budget is proposed. Simulation results show that the proposed scheme not only achieves the high worst-case signal-to-interference-plus-noise-ratio, but also improves the system performance of bit error rate efficiently.

关 键 词：双向中继信道 多输入多输出 网络编码 鲁棒预编码 

分 类 号：TN915[电子电信—通信与信息系统]