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.
出处
《电子与信息学报》
EI
CSCD
北大核心
2010年第6期1446-1451,共6页
Journal of Electronics & Information Technology
关键词
协同通信
吞吐量
中断概率
卡方分布法
Cooperative communication
Throughput
Outage probability
Chi-square distribution method
