Vehicle Density for Vehicular Ad Hoc Networks

• Main Authors: Chen, Shin-Chang, 陳新璋
• Other Authors: Shih, Jau-Der
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/57820083574847784738

碩士 === 國立屏東大學 === 資訊科學系碩士班 === 103 === In recent years, the issue of Vehicular Ad-Hoc Network （VANET） has received great attention, and more and more VANET-related researches have been brought up. It would be a great challenge to forward data efficiently in VANETs. Thus, many researches have focused on the development of routing protocols. The main purpose of this is to propose a geographic position-based routing protocol, VD-AODV. The protocol needs Global Position System （GPS） to obtain the positions of vehicles, and use the information to enhance the decision-making of data delivery. The VD-AODV is based on the real-time road vehicle density to provide fast and reliable communications. It can adapt to the dynamic vehicular city environment. In VD-AODV, each vehicle computes the vehicle density of the road by using beacon messages and road information table. Based on the real-time road vehicle density information, each vehicle establishes a reliable route for packet delivery. We compare AODV routing protocol, AOMDV routing protocol, and VD-AODV routing protocol, and by using NS2 simulation. The results show that our algorithm achieves the best performance.