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中文摘要：
在频谱资源重复利用的背景下,干扰受限的两跳多接入信道的中断性能是亟待解决的难题之一.针对目的端干扰受限的情形,本文给出了该信道在放大转发模式下的中断概率闭式解.根据中断事件的定义将中断概率分解为两部分：一部分是中继节点发生中断的概率,另一部分是中继节点未发生中断,但中继节点到目的节点的传输发生了中断的概率.通过对第二部分中断概率进行合理的近似,推导出整个系统中断概率的闭式解,为系统的实际设计提供了理论基础.仿真结果表明,所给出的估计闭式解与蒙特卡洛仿真结果相吻合,验证了此估计解的精确性.
英文摘要：
Due to the frequency reuse,the outage performance of the interference-limited two-hop multiple access-channel（TH-MAC） has become one of the problems to be solved.With interference-limited destination,the outage probability of the amplify-and-forward（AF） TH-MAC is derived in closed form.Firstly,the outage probability is divided into two parts：one is the probability that an outage happens at the relay;the other is the probability that outage does not happen at the relay,but happens at the destination.Then,based on rational approximation for the second part of the outage probability,a closed form outage probability is derived for the channel,and it provides a theoretical framework for the practical system design.Numerical results show that the approximation fits well with the Monte Carlo results,which validates the accuracy of the approximation.
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