A Segment-based Broadcast Protocol Using Directional Antennas with Multi-hop Emergency Message Dissemination for Vehicular Ad Hoc Networks

• Main Authors: Chang-Ming Chen, 陳昶銘
• Other Authors: Kuei-Ping Shih
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/89230433491582339740

碩士 === 淡江大學 === 資訊工程學系資訊網路與通訊碩士班 === 100 === Recently, wireless communications have been used in the daily life with the growth of the wireless networks, such as vehicular ad hoc networks. The rapid development of transport increases the congestion and traffic accident. Therefore, many countries develop the intelligent transportation system and subsystem, dedicated short range communication technology to apply on the vehicular ad hoc networks for the communications among vehicles in the high mobile environments. The main purpose of the vehicular ad hoc networks is to provide the emergency message dissemination and normal data transmissions. In order to keeps drivers far away the traffic accident, the broadcast of immediate emergent notifications in vehicular ad hoc networks has become one of the hot research issues. Therefore, this thesis proposes a reliable emergent notifications broadcast protocol using directional antennas in vehicular ad hoc networks. The proposed protocol assigns the forwarding vehicle based on the neighboring vehicular information. Therefore, the protocol not only provides a broadcast of the reliable emergent notifications, but also shorts the wasted time used for the assignment of the forwarding vehicle and the collection of neighboring vehicular information.