基于多接口状态字的VANET信道接入算法研究  

Research of channel accessing algorithm based on multi-radio status word for VANET

作　　者：孙智乐[1,2] 李德 陶冰 刘潇[1,2] 张民[1,2] 

机构地区：[1]东华大学信息科学与技术学院,上海201620 [2]东华大学数字化纺织服装技术教育部工程研究中心,上海201620

出　　处：《微型机与应用》2014年第24期54-56,共3页Microcomputer & Its Applications

基　　金：国家自然科学基金(71171045);上海市科委保密专项项目(11JG0500300)

摘　　要：为了实现多接口车载自组织网络(VANET)车辆节点合理高效的信道接入,提出了一种基于车辆节点多接口状态字的时分竞争信道接入算法。根据车辆节点的多接口状态字给出了时隙划分的方法与竞争退避机制原则,通过综合考虑竞争类技术与时分多址技术的优点,有效解决了信道公平接入的问题。通过软件仿真比较可以看出,该算法实现了信道的合理接入,减小了平均端到端时延,增加了网络平均吞吐量,显著提高了多接口VANET的网络性能。In order to achieve reasonable and efficient channel accessing of vehicle nodes for muti-radio VANET, a time division competition channel accessing algorithm based on multi-radio status word is proposed. According to the multi-radio status word of vehicle nodes, the paper introduces the way of time division and the principle of competition retreat. The problem of channel accessing fairly has been resolved due to the advantages of competition and time division has been considered. Through software simulation, it can be seen that this algorithm achieves the reasonable channel accessing, reduces the average end-to-end delay, increases the network average throughput and significantly improves the network performance of multi-radio VANET.

关 键 词：多接口状态字 车载自组网 时分 竞争 信道接入 

分 类 号：TN913[电子电信—通信与信息系统]