一种虚拟多输入多输出用户配对算法  

A User Pairing Algorithm for Virtual MIMO Systems

作　　者：蒋武扬[1] 刘伟[1] 丁铭[1] 罗汉文[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《上海交通大学学报》2011年第3期350-353,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(60572157)

摘　　要：针对现有半正交用户配对算法中信道条件较差、用户的传输速率过低的缺陷,提出了一种基于部分逆选策略的半正交用户配对算法.该算法通过分析线性最小均方误差接收机,对信道条件较差的部分用户提出"逆选"的配对准则.仿真结果表明,该算法在系统速率和损失较小的前提下,能有效提高信道条件较差用户的传输速率,从而在系统速率和与用户公平性之间取得较好的折衷性能.A novel user pairing algorithm for virtual MIMO systems was proposed based on semi-orthogonal user selection（SUS） with partial inverse selection.To solve the problem that users with bad channel condition suffer from low throughput in the traditional SUS algorithm,this paper proposed a mechanism called ＇inverse selection＇,which is derived from the analysis of the MMSE receiver.The simulation results show that the new algorithm largely improves the throughput of users with poor SINR at a reasonable cost of the overall throughput decrease,thus achieving a profitable trade-off between system throughput and user fairness.

关 键 词：通信 虚拟多输入多输出 用户配对 半正交用户选择 逆选 

分 类 号：TN911[电子电信—通信与信息系统]