Outage Probability Analysis of Interference-Limited Two-Hop Multiple-Access Channel

SU Yu-ping; LI Ying; LIU Lei

doi:10.3969/j.issn.0372-2112.2015.12.011

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Outage Probability Analysis of Interference-Limited Two-Hop Multiple-Access Channel

更新时间：2025-07-16

- Outage Probability Analysis of Interference-Limited Two-Hop Multiple-Access Channel
- Acta Electronica Sinica Vol. 43, Issue 12, Pages: 2414-2420(2015)
- 作者机构：
  
  西安电子科技大学通信工程学院,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2015.12.011
  CLC： TN925+.1
- Published：2015
- 稿件说明：
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SU Yu-ping, LI Ying, LIU Lei. Outage Probability Analysis of Interference-Limited Two-Hop Multiple-Access Channel[J]. Acta Electronica Sinica, 2015, 43(12): 2414-2420.
DOI：

SU Yu-ping, LI Ying, LIU Lei. Outage Probability Analysis of Interference-Limited Two-Hop Multiple-Access Channel[J]. Acta Electronica Sinica, 2015, 43(12): 2414-2420. DOI： 10.3969/j.issn.0372-2112.2015.12.011.

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.

Abstract

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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