Comparative Investigation on MU-MIMO Schemes for TDD MIMO OFDMA Uplink

摘要：

CSI can be ultilized at the transmitter to implement close loop multiuser MIMO and obtain both full spatial multiplexing and multiuser diversity gain in uplink. In this paper, Multiuser Per Antenna Rate Control (MU-PARC) and Multiuser Singular Value Decomposition (MU-SVD) for Spatial Divison Multiplexing (SDM) of MIMO OFDM are investigated and a novel joint spatial frequency Proportional Fairness (PF) scheduling is proposed to guarantee the user fairness. MU-SVD is expected to achieve better system throughput since it can achieve full transmission and reception diversity and multiuser diversity gain, while MU-PARC can only achieve reception diversity and multiuser diversity gain. From the simulation results, the throughput of MU-SVD is 31％ higher than that of MU-PARC for 4×2MIMO and 8×4 MIMO scenario when SNR at receiver antenna is set as 10dB without path loss and shadowing.

作者: Guangyi LIU Jianhua Zhang

作者单位: Beijing University of Posts & Telecoms,Beijing,P.R.China,100876

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）