基于最大化容量的SLNR多用户MIMO预编码的研究  

Study of Precoding Based on Maximum Capacity of SLNR in Multi-user MIMO

作　　者：赵利国[1] 王新新[1] 

机构地区：[1]洛阳理工学院计算机与信息科学系,河南洛阳471000

出　　处：《电视技术》2011年第13期95-97,共3页Video Engineering

基　　金：洛阳理工学院青年科研基金

摘　　要：在多用户MIMO系统中可以联合预编码和功率分配来提高系统QoS。在重点研究信漏噪比SLNR的基础上,提出一种低复杂度的联合预编码与功率分配的算法。首先利用信道的迹为各个用户分配功率,然后以误码率最小准则为用户的各个空间子信道分配功率,既克服了SLNR只利用单个子信道传输的缺点,同时兼顾系统性能和运算复杂度。理论分析和仿真结果表明算法的实用价值。The QoS of multi-user MIMO systems can be improved through combining with precoder design and power allocation. By analyzing the SLNR, a low complexity algorithm that focuses on precoding and power allocation is proposed. Firstly, the power is allocated for all users and all sub-channels according to trace of channels. The algorithm makes full use of MIMO channels, while considering BER and perplexity. The simulation results show that it is useful in practice.

关 键 词：多用户 多输入多输出 预编码 块对角化 信漏噪比 

分 类 号：TN919.3[电子电信—通信与信息系统]