차량간 통신에서의 D-ODAM 프로토콜에 대한 연구

Abstract

A VANET (Vehicular Ad-hoc Network) is a network which offers direct radio communication between vehicles without any aid of infrastructured networks. It can greatly improve traffic flow through its self-organizing network architecture. High mobility of vehicles, frequent topology change, and congestion of vehicles are some remarkable inherent characteristics of such networks. These inseparable characteristics are the major cause that deteriorates performance of the network. In this thesis, a delay tolerant distance-based broadcasting protocol is proposed, which can change latency according to circumstance of network topology. This change in latency of a broadcasting packet can be tuned according to distance between relay nodes. Performance evaluation shows that the proposed D-ODAM has low packet delivery delay compared to other protocol. Hence, this algorithm can be easily applied to applications which seek communication for emergency message delivery in highway environment.