| Summary: | 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.
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