协同通信系统中一种新的分析吞吐量的方法  

A Novel Method of Throughput Analysis in Cooperative Communication Systems

作　　者：啜钢[1,2] 裴静[1,2] 刘洪来[1,2] 唐兴伟[1,2] 

机构地区：[1]北京邮电大学信息与通信工程学院,北京100876 [2]泛网无线通信教育部重点实验室(北京邮电大学),北京100876

出　　处：《电子与信息学报》2010年第6期1446-1451,共6页Journal of Electronics & Information Technology

摘　　要：为了提高系统性能并最大限度降低算法复杂度,该文提出了一种新的协同通信系统中吞吐量的更优近似分析方法—等效卡方分布法。通过与传统的等效高斯分布法相比,该方法得出了更为精确的吞吐量的理论表达式,并进一步研究信息速率和信噪比对吞吐量的影响,给出了使吞吐量达到最大的最优R。理论分析和仿真结果表明,等效卡方分布法可以更有效地运用到基于多协作中继的协同通信系统的分析研究中。In order to improve the system performance and reduce the algorithm complexity future,a new better approximate analysis method named equivalent chi-square distribution method is proposed in cooperative communication systems.More accurate theoretical expressions of throughput are derived compared with the traditional equivalent Gaussian distribution method,the effect of throughput on information rate and signal-to-noise ratio is studied,and the optimal information rate parameter R is also given.Analysis and simulation demonstrate that equivalent chi-square distribution method can be effectively applied to the research of cooperative communication systems with the collaborative multiple relays.

关 键 词：协同通信 吞吐量 中断概率 卡方分布法 

分 类 号：TN911[电子电信—通信与信息系统]