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A Delay Tolerant Vehicular Routing Protocol for Low Vehicle Densities in VANETs  

Cha, Si-Ho (Dept. of Multimedia Science, Chungwoon University)
Ryu, Min-Woo (Dept. of Computer Science, Kwangwoon University)
Cho, Kuk-Hyun (Dept. of Computer Science, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.49, no.4, 2012 , pp. 82-88 More about this Journal
Abstract
A VANET (Vehicular Ad Hoc Network), a subclass of MANET (Mobile Ad Hoc Network), is an ad hoc network using wireless communication between vehicles without fixed infrastructure such as base station. VANET suffers a frequent link breakage and network topology change because of the rapid movement of vehicles and the density change of vehicles. From these characteristics of VANET, geographical routing protocols such as GPSR (Greedy Perimeter Stateless Routing) using only the information of neighbor nodes are more suitable rather than AODV and DSR that are used in existing MANETs. However, GPSR may have a transmission delay and packet loss by frequent link disconnection and continual local maxima under the low vehicle density conditions. Therefore, in this paper, we propose a DTVR (Delay Tolerant Vehicular Routing) algorithm that perform a DTN-based routing scheme if there is no 2-hop neighbor nodes for efficient routing under the low vehicle densities in VANETs. Simulation results using ns-2 reveal that the proposed DTVR protocol performs much better performance than the existing routing protocols.
Keywords
VANET; Inter-Vehicle Communication; Delay Tolerant; Vehicle Density;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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