基于信干比的均匀分布用户中断概率分析  

Outage probability analysis of uniformly distribution user based on signal to interference ratio

作　　者：李正权 袁月 LI Zhengquan;YUAN Yue(School of Internet of Things Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China;Jiangsu Future Networks Innovation Institute,Nanjing,Jiangsu 211111,China)

机构地区：[1]江南大学物联网工程学院,江苏无锡214122 [2]江苏省未来网络创新研究院,江苏南京211111

出　　处：《江苏大学学报（自然科学版）》2023年第5期577-581,598,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(61571108);未来网络科研基金资助项目(FNSRFP-2021-YB-11)。

摘　　要：为了分析异构蜂窝的网络干扰、确认通信系统的关键性能指标、提高通信系统可靠性,对均匀分布在蜂窝网中的用户终端进行研究.首先对5G通信系统中超密集网络下行链路中的用户终端进行随机几何建模;其次对用户设备受到小区外某一基站干扰时的情况进行分析;然后给出了用户设备信干比的概率密度函数,并对基于信干比的中断概率进行计算;最后通过蒙特卡洛模拟进行验证.结果表明,所提出的中断概率分析方法能够适用于异构蜂窝网的下行链路通信场景.To analyze the key performance indicators of cellular network communication and improve the reliability of communication systems,the user terminals uniformly distributed in cellular networks were analyzed.The random geometric modeling of user terminals in the downlink of ultra dense networks in 5G communication systems was conducted,and the situation of user equipment interfered by a base station outside the cell was analyzed.The probability density function of the user equipment′s signal-to-interference ratio was given,and the interruption probability based on the signal-to-interference ratio was calculated.The analysis results were verified by Monte Carlo simulation.The results show that the proposed interruption probability analysis method can be applied to the downlink communication scenario of heterogeneous cellular networks.

关 键 词：无线通信 超密集网络 蜂窝网 下行链路 路径损耗 几何建模 信干比 中断概率 

分 类 号：TN928[电子电信—通信与信息系统]