Outage Performance Analysis and Optimal Power Allocation of Opportunistic Cooperation Communications without Direct-Link

摘要：

The performance of cooperative communications highly depends on careful resource management, such as power allocation and relay selection. Great deal of works has been done in this field in the past few years. However, the power allocation and relay selection of opportunistic cooperative system without direct-link between source and the destination have not been extensively studied. In this paper, we analysis the outage performance of the opportunistic cooperation without direct-link, and then, using the convex theory, the optimal power allocation expression is given which depend only on partial of channel state information (CSI). It is shown that optimal power allocation can evidently improve the outage performance of opportunistic cooperative system.

关键词： power allocation cooperative communication opportunistic relaying

作者: Chen Xiaojie Xu Youyun Zhang Dongmei

作者单位: Institute of Communications Engineering, PLA University of Science and Technology Nanjing 210007, Ch Institute of Communications Engineering, PLA University of Science and TechnologyNanjing 210007, Chi

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-4

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）