基于移动节点的无线网状网MX-MAC协议  

MX-MAC protocol for wireless Mesh networks based on mobile nodes

作　　者：龙昭华[1] 侯堂杰 刘达明[1] 马永建[1] 

机构地区：[1]重庆邮电大学计算机科学与技术学院,重庆400065

出　　处：《计算机工程与设计》2017年第3期566-570,共5页Computer Engineering and Design

基　　金：重庆市研究生教学改革研究基金项目(yjg143097)

摘　　要：无线Mesh网络中移动节点的数据包冲突问题,严重降低了网络的吞吐率和能量利用率。针对该问题,对现有XMAC协议进行优化,提出移动MX-MAC协议。在移动节点和非移动节点通信的情况下,增加退避机制,每个节点在发送数据之前进行退避。仿真结果表明,MX-MAC协议能够增加无线Mesh网络的生存周期,降低无线Mesh节点的碰撞和串听几率。The problem of collisions in mobile nodes of wireless Mesh networks seriously reduces the network throughput and the energy efficiency.To solve this problem,MX-MAC protocol developed based on X-MAC was proposed.Under certain conditions of communication between mobile nodes and fixed node,a retreat mechanism was added into MX-MAC protocol and each node was retreated before sending data.Results of simulation show that MX-MAC protocol is effective on increasing the lifetime of wireless Mesh networks and on reducing the probability of collision and overhearing wireless Mesh nodes.

关 键 词：无线MESH网络 MX-MAC 移动节点 退避算法 碰撞 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]