基于CSMA_CA改进的战术级机动自组网MAC协议设计与实现  

Design and Implementation of an Improved MAC Protocol for Tactical Mobile Ad Hoc Network Based on CSMA/CA

作　　者：张瑾 袁韵洁[1] 郑昱[1] 蔡晓磊 ZHANG Jin;YUAN Yunjie;ZHENG Yu;CAI Xiaolei(Xi'an Electronic Engineering Research Institute, Xi'an 710100)

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2020年第1期84-89,94,共7页Fire Control Radar Technology

摘　　要：现代战场通信环境日益复杂,特别是复杂电子的干扰及其战术网络不确定因素较多,网络可靠性很难保证。本文以战术移动Ad Hoc网络为背景,以增强通信速率、提高通信干扰抗毁伤能力、增强系统隐蔽性作为研制目标。运用OPNET网络仿真软件建立了Ad Hoc网络仿真模型,采用CSMA/CA改进的战术级机动身组网MAC协议对网络规模和网络负载进行了仿真,得到了战术Ad Hoc网络性能的数据曲线,包括端到端时延、网络业务吞吐量。仿真结果显示,不论是吞吐量还是延迟方面,所提出的改进后的MAC协议都具有较好的性能。The modern battlefield communication environment is becoming more and more complex,especially due to the interference of complex electronics and various uncertain factors of tactical communication networks,so it is difficult to guarantee the network reliability.Based on the background of tactical mobile Ad Hoc network,aiming at increasing the communication rate,improving the anti-jamming and anti-damage ability of commuication,and enhancing the concealment of the system,this paper uses OPNET network simulation software to establish an Ad Hoc network simulation model,and uses CSMA/CA improved MAC protocal of Tactical Mobile Ad Hoc network to simulate the network scale and network load,and the performance data curves of the tactical Ad Hoc network are obtained,including curves for end-to-end delay and network traffic throughput.The simulation results show that the proposed MAC protocol has higher performance in terms of throughput and delay.

关 键 词：自组网 MAC协议 CSMA/CA 智能天线 OPNET 

分 类 号：TN95[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]