ANALYSIS OF OUTAGE CAPACITY FOR DF DUAL-HOP RELAY AND OPTIMAL POWER ALLOCATION

摘要：

The performance of relay is often measured by ergodic capacity and outage capacity.In comparison,Outage capacity is more appropriate measure for channel quality in wireless communication system.Although outage capacity has been mentioned in some literature, but no research has been clearly revealed outage capacity of DF dual-hop relay.In this paper, we obtain a constraint equation of outage capacity for DF dual-hop relay.Otherwise, we take optimal power allocation into account for our analysis. Numerical results compare the performance of uniform power allocation with that of optimal power allocation.It is show that optimal power allocation is required for DF dual-hop relay system.Especially, when the gap of channel gains between the source to relay and the relay to destination increases, the advantage of optimal power allocation become more pronounced.

关键词： outage capacity outage probability DF dual-hop relay optimal power allocation

作者: Xiqiang Qu Xiaodong Xu Hongjia Li Xiaofeng Tao Hui Tian

作者单位: Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijin Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijin

会议类型: 国际会议

会议名称: Iet International Conference on Wireless Sensor Network 2010(2010年物联网应用技术国际会议 IET-WSN 2010)

会议地点: 北京

会议语种:英文

页码: 194-197

在线出版日期: 2010-11-15（万方平台首次上网日期，不代表论文的发表时间）