移动无线传感器协作网络的中断概率性能研究  

Outage Probability Performance Analysis of Mobile Wireless Sensor Cooperative Network

作　　者：王涵 杜文才[2] 万倩倩 WANG Han;DU Wencai;WAN Qianqian(College of Physical Science & Engineering,Yichun University,Yichun 336000,China;Institute of Data Science,City Universityof Macao,999078,China;The Weapon Industry Institute of Computer Application Technology,Beijing 100089,China)

机构地区：[1]宜春学院物理科学与工程技术学院,宜春336000 [2]澳门城市大学数据科学研究学院,中国澳门999078 [3]中国兵器工业计算机应用技术研究所,北京100089

出　　处：《传感技术学报》2020年第2期293-298,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61901409)。

摘　　要：随着物联网技术的发展,移动无线传感器协作网络成为了研究热点。但是由于信道的开放性,移动无线传感器协作网络的性能研究较为复杂。在N-Nakagami信道下,建立了移动无线传感器协作网络模型,设计了两种发射天线选择(Transmit Antenna Selection,TAS)方案,研究了移动无线传感器协作网络的中断概率(Outage Probability,OP)性能。移动无线传感器协作网络采用放大转发策略,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,通过不同条件的Monte-Carlo仿真,验证了系统的中断概率性能。仿真结果表明理论值很好的拟合了Monte-Carlo仿真值,其正确性得到了验证;增加发射天线数可以很好的改善系统的中断概率性能。With the development of the internet of things technology,the mobile wireless sensor cooperative network has become a hot issue of academic researches. Due to the openness of wireless channels,the performance research of the mobile wireless sensor cooperative network is very complicated. In this work,based on N-Nakagami channels,we establish the model of the mobile wireless sensor cooperative network,propose two transmit antenna selection(TAS)schemes,and investigate the outage probability(OP)performance. The amplify-and-forward(AF)relaying protocol is used in the mobile wireless sensor cooperative network,and the exact closed-form expressions for OP of the optimal and suboptimal TAS schemes are derived,respectively. Then,through Monte-Carlo simulations,we verify the OP performance under different conditions. Simulation results show that the analytical results match perfectly with the Monte-Carlo simulation results,the OP performance is improved with the increase of the number of transmit antennas.

关 键 词：无线传感器网络 协作通信 中断概率 发射天线选择 

分 类 号：TN929.5[电子电信—通信与信息系统]