Two Effective Unicast Modes in MIMO Multi-relay Systems

摘要：

In MIMO multi-relay systems, close-loop precoding at relay nodes is not necessary if unicast modes are carried out. However, in unicast modes, the inter-stream interference at relay nodes may degrade the system capacity. In this paper, two unicast modes are proposed to reduce the negative impact of the residual interference. The first one suppresses the interference by applying orthogonal precoding at the source node and the second one suppresses the residual interference through receiving filters at relay nodes. Analysis of the system capacity performance are given and simulation results will demonstrate the superiority of proposed modes.

作者: Meiying Wei Chunjing Hu Hang Long Kan Zheng Wenbo Wang

作者单位: Wireless Signal Processing and Network Lab Key Laboratory of Universal Wireless Communication, Ministry of Education Beijing University of Posts and Telecommunications, Beijing China (100876)

会议类型: 国际会议

会议名称: 2009 3rd IEEE International Symposium on Microwave,Antenna,Progagation and EMC Technologies for Wireless Communications(第三届微波、天线、电波传播和EMC技术国际会议

会议地点: 北京

会议语种:英文

页码: 450-453

在线出版日期: 2009-10-27（万方平台首次上网日期，不代表论文的发表时间）