A Density-Aware Segment-Based Emergency Message Dissemination Scheme for VANETs

• Main Authors: Shih-Yu Lee, 李世予
• Other Authors: Yi-Cheng Chen
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/87729596543811442248

碩士 === 淡江大學 === 資訊工程學系碩士班 === 104 === This paper presents a density perception of a segmented urgent message delivery mechanism to effectively broadcast emergency safety messages. In this paper, our main approach is to be broadcast dynamically adjust signal strength to calculate the density of vehicles on the road in the transmission range, and in accordance with the density, the dynamic selection of dichotomy or eight law, to find out the transmission range the farthest vehicle. About vehicle density in accordance with dynamic selection of search methods effectiveness analysis, mathematical analysis has been completed can be used to assist. This will not only find the most distant, the best vehicle for emergency safety messages forwarding, while also reducing interference between vehicles to ensure that network resources, thus increasing the packet transmission rate. In the simulation experiments, our proposed protocol, compared with the relevant papers can be found in a relatively good performance