多用户MIMO中继通信系统中线性处理器设计  

The Linear Processor Designs for Multi-user MIMO Relay Communication Systems

作　　者：赵睿[1] 蔡灿辉[1] 

机构地区：[1]华侨大学信息科学与工程学院,厦门361021

出　　处：《河南师范大学学报（自然科学版）》2011年第6期51-54,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家科技重大专项(2009ZX03003-004);国家自然科学基金(60902012;60772164);福建省科技重大专项(2009HZ0008);福建省自然科学基金(2011J05152);华侨大学科研项目(10BS208)

摘　　要：在多用户MIMO(多输入多输出)中继通信系统中研究了基站预编码和中继处理矩阵的优化设计问题,提出了一种能有效消除多用户干扰的基站预编码方案——迫零QR,并采用奇异值分解(SVD)法设计了中继处理矩阵.仿真结果表明,所提的迫零QR预编码方案的和速率随着天线数的增加和用户数的增加而增大,且明显优于基站无预编码策略,若与SVD中继策略相结合可进一步显著提升系统和速率性能.The optimized design of base station precoder and relay processing matrix is investigated in multi-user MIMO （Multiple-Input Multiple-Output） relay communication systems. A base station precoder scheme, called zero-forcing QR, is proposed to eliminate the multi-user interference efficiently, and the relay processing matrix based on singular value decomposition （SVD） is also designed. The simulation results show that the sum rate of the proposed zero-forcing QR procoding scheme increase with the number of the antennas and the number of the users, and outperform the scheme without the precoder, and the zero-forcing QR combined with SVD relaying scheme can further improve dramatically the system sum rate performance.

关 键 词：多用户MIMO 中继 预编码 奇异值分解 和速率 

分 类 号：TN92[电子电信—通信与信息系统]