协作分集中的移动中继研究  

The Analysis of Mobile Relay in Cooperative Diversity

作　　者：刘伟伟[1] 程恩[1] 孙海信[1] 袁飞[1] 沈伟杰[1] 

机构地区：[1]厦门大学信息科学与技术学院,水声通信与海洋信息技术教育部重点实验室,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2010年第6期803-805,共3页Journal of Xiamen University：Natural Science

基　　金：福建省青年创新基金项目(2009J05155);厦门大学“985”二期信息创新平台项目;厦门市科技计划项目(3502Z20093008)

摘　　要：协作分集是近几年无线通信技术的研究热点.在协作通信中合理的选择中继能给系统带来更大的增益,进一步提高系统性能.主要研究了在中继中使用放大转发协议,接收端使用提高的信噪比合并方式,中继处于不同位置下的协作分集系统的性能,并对各种情况进行Matlab仿真,对仿真结果进行比较和分析.仿真结果表明,在中继、发送端和接收端三者的距离之比为1∶0.5∶0.5时,系统能够获得较好的性能.In recent years,there has been an increasing focus on the cooperative diversity in wireless communications.The reasonable selection of the relay in cooperative communications can give high-gain.The aim of this project is to study the system′s performances when the relay is located at different position just as relay employs amplify-and-forward（AAF） cooperative scheme and we use enhanced signal to noise combining（ESNRC） in the destination.In the project,we have done simulation in matlab in different conditions and compare the performance of them.The simulation results show that when the ratio of the distance between the relay and the source and the destination is 1∶0.5∶0.5,the system performs well.

关 键 词：协作分集 移动中继 放大转发 信噪比合并 

分 类 号：TN911[电子电信—通信与信息系统]