Impact of Relay Location to SER Performance with Different Power Allocation Methods in Cooperative System

摘要：

In this paper, we analyze the symbol-error-rate(SER) performance for a two-user amplify-and-forward coopera-tivesystem. The closed-form SER formulation and correspondingupper bound with PSK signals are derived first. Moreover,we develop an optimum power allocation for the cooperativesystem to minimize the SER. With the optimum and equalpower allocation methods, we discuss the impact of relay locationto the SER performance by making use of a characteristicellipse topology. With the equal power allocation, the SER curveshows an interesting symmetric characteristic and the optimumrelay location is just in the middle with respect to the sourceand destination, while the optimum relay location is near thedestination with the optimum power case.

作者: Fei Lin Hai Huang Tao Luo Guangxin Yue

作者单位: School of Telecommunication Engineering Beijing University of Posts and Telecommunications Beijing, China, 100876

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）