A Novel User Pairing Algorithm for Uplink Virtual MIMO Systems

作者：Liu, Wei^*; Jiang, Wu yang; Luo, Hanwen; Ding, Ming

来源：IEICE - Transactions on Communications, 2012, E95B(7): 2485-2488.

DOI：10.1587/transcom.E95.B.2485

• virtual multiple-input multiple-output (Virtual MIMO)
• user pairing
• semi-orthogonal user selection (SUS)
• inverse selection

The conventional semi-orthogonal user pairing algorithm in uplink virtual MIMO systems can be used to improve the total system throughput but it usually fails to maintain good throughput performance for users experiencing relatively poor channel conditions. A novel user paring algorithm is presented in this paper to solve this fairness issue. Based on our analysis of the MMSE receiver, a new criterion called "inverse selection" is proposed for use in conjunction with the semi-orthogonal user selection. Simulation results show that the proposed algorithm can significantly improve the throughput of users with poor channel condition at only a small reduction of the overall throughput.

• 出版日期2012-7
• 单位上海交通大学