利用地理位置的中继选择及功率分配  

Relay selection using location and power allocation

作　　者：陈碧蓉[1] 张静[1] 董建萍[1] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2011年第3期249-253,共5页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海师范大学科研项目(SK201129)

摘　　要：在协作多中继蜂窝系统下行链路中,提出根据中继节点地理位置和吞吐量增益联合选取中继节点参与移动用户和基站间的协作通信方案,并运用凸优化算法分配各节点功率.仿真结果表明:该方案不仅改善了用户的误码率,并且提高了系统吞吐量.This article proposes a scheme about how to select relay nodes according to their Joint location and throughput gains to participate in the collaborative communicationbetween mobile users and the base station in the down-link of a cooperative multi-relay cellular system.Convex optimization algorithm is used to distribute each node power.The simulation results show that the scheme can not only improve the users′ bit error rate,but also increases the system throughput.

关 键 词：协作多中继 误码率 中继选择 凸优化 

分 类 号：TN929.5[电子电信—通信与信息系统]