上海交通大学学报

上海交通大学学报（自然版） ›› 2011, Vol. 45 ›› Issue (03): 350-0353.

• 无线电电子学、电信技术 • 上一篇    下一篇

一种虚拟多输入多输出用户配对算法

 蒋武扬, 刘伟, 丁铭, 罗汉文   

  1. (上海交通大学 电子信息与电气工程学院， 上海 200240)
  • 收稿日期:2010-04-20 出版日期:2011-03-30 发布日期:2011-03-30
  • 基金资助:

    国家自然科学基金资助项目（60572157）

A User Pairing Algorithm for Virtual MIMO Systems

Jiang-Wu-Yang, LIU  Wei, DING  Ming, LUO  Han-Wen   

  1. (School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2010-04-20 Online:2011-03-30 Published:2011-03-30

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.

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

Abstract: 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.

Key words: communication, virtual multipleinput multipleoutput (virtual MIMO), user pairing, semiorthogonal user selection (SUS), inverse selection

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