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为了更有效地分析非对称信道下协作通信的系统中断性能,本文提出了一种新的基于满分集特性的中断概率分析方法,并给出了高信噪比情况下的中断概率的近似表达式。文章进一步研究了有无直传链路和中继节点个数对系统中断性能的影响。理论分析与仿真结果表明,基于满分集特性求中断概率的方法能有效应用于协作通信系统的研究中。
In order to analyze the system interrupt performance of cooperative communication under asymmetric channel more effectively, this paper presents a new method of interrupt probability analysis based on full-diversity and gives the approximate expression of interrupt probability under high signal-to-noise ratio . The article further studies the influence of the number of direct links and relay nodes on the system interrupt performance. The theoretical analysis and simulation results show that the method based on full-diversity feature can effectively apply to the research of cooperative communication system.