一种基于接收端决策的介质访问控制(MAC)协议  

A Media Access Control(MAC) Protocol Based on Receiver Decision

作　　者：李永锋 姜胜明[1] LI Yong-feng;JIANG Sheng-ming(College of Information Engineering,Shanghai Maritime University,Shanghai 201306)

机构地区：[1]上海海事大学信息工程学院,上海201306

出　　处：《现代计算机（中旬刊）》2018年第6期14-18,共5页Modern Computer

基　　金：国家自然科学基金(No.61472237;No.U1701265)

摘　　要：无线网络环境中,隐藏终端和暴露终端问题是导致信道资源浪费、网络吞吐量降低的关键因素。提出一种基于握手机制的以接收端决策为主的MAC协议。在握手阶段,接收端与多个发送端进行握手,获取发送信息并建立接收计划,再将接收计划告知发送端,使发送端能根据接收计划发送消息,从而解决隐藏终端和暴露终端的问题。同时,此协议能够降低数据发送的等待时间,提高网络吞吐量,并获得较低的时延和丢包率。仿真结果表明该协议能够实现上述目的。In wireless network environment,hidden terminal and exposed terminal are the key factors that lead to channel resource waste and network throughput decline.Presents a handshake based MAC protocol based on receiver.In the handshake stage,the receiver handshake with a plurality of sender to obtain the transmission information and establish a reception plan.Then the reception plan is informed to the sender,so that the sender can send messages according to the reception plan,thus solving the problem of hidden terminal and exposed terminal.At the same time,the protocol can reduce the waiting time of data transmission,improve network throughput,and achieve lower delay and packet loss rate.The simulation results show that the protocol can achieve the above purpose.

关 键 词：隐藏终端 暴露终端 MAC协议 接收计划 握手机制 吞吐量 

分 类 号：TN915.04[电子电信—通信与信息系统]