A Simplified Cooperative Spatial Multiplexing Scheme of MIMO-CDMA Networks

摘要：

The existing cooperative spatial multiplexing (CSM) schemes for MIMO-CDMA network have four vital problems to hinder CSMs application: exact synchronization among the mobile stations(MSs) and base station (BS), spatial channels estimation for MSs, space-time coding and decoding for BS and MSs, the implementation complexity of BS and MSs. To solve the problems, a simplified cooperative spatial multiplexing scheme is proposed, including BS and MS systems, where MIMO BS in a cell has two antennas and each MS of lower moving speed has one antenna only. To ensure communication quality of the network, the scheme applies LDPC as the channel coding instead of space-time coding for BSs and MSs. BS assigns the same CDMA channels for MSs to have larger space interval. Simulations show that good spatial multiplexing capacity and BER performance have been achieved by the proposed scheme.

关键词： wireless communication cooperative MIMO spatial multiplexing encoding and decoding algorithms

作者: Yang Xiao Kiseon Kim Guangzhi Qu

作者单位: Institute of Information Science, Beijing Jiaotong University, Beijing 100044, China Dept.of Information and Communications, Gwangju Institute of Science and Technology, Gwangju 500-712 Dept.of Engineering and Computer Science, Oakland University, Rochester, MI48309, USA

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1480-1483

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）