期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2017
卷号：5
期号：11
页码：16466
DOI：10.15680/IJIRCCE.2017.0511017
出版社：S&S Publications
摘要：VANETS are upcoming and promising applications of Mobile Ad-Hoc Networks. They promise vehicleto vehicle interactions for safer transportation, emergency update services during unexpected calamities, efficient trafficrouting in urban areas and on freeways for faster transport, routing of packets for infotainment services and much more.In this paper, concept of the IEEE 802.11p MAC protocol in vehicular environments is presented. Firstly, the existingevaluation of 802.11 with headway based segmentation upto 10 segments is presented and classified, and subsequently,the enhancements up to the 12 segments which has been proposed for 802.11p MAC, is presented and discussed. Basedon the mentioned evaluations and enhancements, a conclusion is reached regarding the present situation of thisprotocol. Headway based segmentation is used for lanes so as to provide effective broadcasting. The probability ofcollision is reduced using headway based segmentation. Through these ideas a protocol and few simulative modelshave been developed on MATLAB platform that possesses minimum latency, minimum probability of collision in theacknowledgment messages and unique robustness at different speeds and traffic volumes.
