协作中继分布的系统性能分析

doi:10.3969/j.issn.1001-2400.2011.01.013

J4 ›› 2011, Vol. 38 ›› Issue (1): 80-84.doi: 10.3969/j.issn.1001-2400.2011.01.013

协作中继分布的系统性能分析

王勇;李晖;张卫东

(西安电子科技大学计算机网络与信息安全教育部重点实验室，陕西西安 710071)

收稿日期:2010-06-09 出版日期:2011-02-20 发布日期:2011-04-08
通讯作者: 王勇
作者简介:王勇(1978-)，男，讲师，博士，E-mail: wangyong@mail.xidian.edu.cn．
基金资助:
陕西省科技计划研究资助项目(2010K06-24);西安市科技计划资助项目(CXY1008(3));2010年中央高校基本科研业务费专项基金资助项目(K50510010028)

Performance analysis of cooperative relay topology

WANG Yong;LI Hui;ZHANG Weidong

(Ministry of Education Key Lab. of Computer Network and Information Security, Xidian Univ., Xi'an 710071， China)

Received:2010-06-09 Online:2011-02-20 Published:2011-04-08
Contact: WANG Yong

摘要/Abstract

摘要：

针对两类基本的单中继模型，通过分析瑞利衰落环境下放大转发和译码转发协作单中继系统的性能，研究了在放大转发和译码转发两种模式下，中继位置对系统容量和性能的影响．仿真表明中继位置对系统性能起着关键作用．对于放大转发模式，当中继位于源节点和目的节点连线的中点时，系统性能最优; 对于译码转发模式，根据不同参数配置，当中继位于源节点和目的节点连线的中点且靠近源节点时，性能最优．

关键词: 协作通信, 中继网络, 放大转发, 译码转发

Abstract:

The performance of amplify-forward (AF) and decode-forward (DF) is analyzed in the two basic single relaying modes for a single-relay system in the Rayleigh fading environment. This paper investigates the impact of the relay's position on the system capacity and probability of error for both AF and DF schemes. The position of the relay is crucial to the performance. The result shows that depending on transmission power, channel noise and path loss the best performance is achieved when the relay is at an equal distance from the sender and the destination in AF or the relay is closer to the source around in DF.

Key words: cooperative communication, relay networks, amplify-forward, decode-forward

中图分类号:

TN919.3

王勇;李晖;张卫东. 协作中继分布的系统性能分析[J]. J4, 2011, 38(1): 80-84.

WANG Yong;LI Hui;ZHANG Weidong. Performance analysis of cooperative relay topology[J]. J4, 2011, 38(1): 80-84.

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协作中继分布的系统性能分析

Performance analysis of cooperative relay topology

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