移动多用户通信系统的中断概率性能研究  

Outage ProbabilityPerformance Analysis of Mobile Multi-user Communication System

作　　者：徐凌伟[1,2] 林文 XU Ling-wei;LIN Wen(School of Information Science&Technology,Qingdao University of Science&Technology,Qingdao 266061,China;Electronic Information and Control of Fujian University Engineering Research Center,Minjiang University,Fuzhou 350121,China)

机构地区：[1]青岛科技大学信息科学技术学院,山东青岛266061 [2]电子信息与控制福建省高校工程研究中心(闽江学院),福建福州350121

出　　处：《聊城大学学报（自然科学版）》2020年第2期43-49,共7页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目（U1806201,61671261）;电子信息与控制福建省高校工程研究中心开放基金（MJXY-KFEIC1801）;山东省自然科学基金项目（ZR2017BF023）;山东省博士后创新项目（201703032）;光电技术与智能控制教育部重点实验室（兰州交通大学）开放课题基金项目（KFKT2018-2）;青岛科技大学引进人才科研启动基金（010029029）资助

摘　　要：随着第五代移动通信技术的发展,移动用户的数量呈爆炸性增长.但是由于复杂多变的移动通信环境,对移动多用户通信系统的性能研究非常复杂,也是一个亟待解决的问题.本文在N-Nakagami信道下,建立了移动多用户通信系统模型,设计了两种发射天线选择(transmit antenna selection,TAS)方案,研究了移动多用户通信系统的中断概率(outage probability,OP)性能.针对最佳TAS方案和次最佳TAS方案,分别推导了系统中断概率的闭合表达式.然后在不同条件下,通过Monte-Carlo仿真,验证了系统的OP性能.仿真结果表明:理论值与Monte-Carlo仿真值有着很好的吻合,理论分析的正确性得到了验证.With the development of the fifth generation mobile communication technology,the number of mobile users is exploding.Due to the complex and changeable mobile communication environment,the research on the performance of mobile multi-user communication system is very complicated,which is also an urgent problem to be solved.In this work,we establish the mobile multi-user communication system model,design two transmit antenna selection(TAS)schemes,and the outage probability(OP)performance over N-Nakagami fading channels is investigated.For optimal and suboptimal TAS schemes,the exact closed-form OP expressions are derived respectively.Then through Monte-Carlo simulations,the OP performance under different conditions is verified.Simulation results show that:the analytical results match perfectly with the Monte-Carlo simulation results,which verifies the accuracy of the analytical results.

关 键 词：移动多用户通信系统 发射天线选择 中断概率 N-Nakagami信道 

分 类 号：TN929.5[电子电信—通信与信息系统]