DocumentCode :
3009625
Title :
SRB: A Selective Reliable Broadcast protocol for safety applications in VANETs
Author :
Vegni, Anna Maria ; Stramacci, Alessio ; Natalizio, Enrico
Author_Institution :
Appl. Electron. Dept., Roma Tre Univ., Rome, Italy
fYear :
2012
fDate :
2-4 July 2012
Firstpage :
89
Lastpage :
94
Abstract :
In this paper we present a novel vehicular communication protocol, which aims to reduce the effect of broadcast storm problem in VANETs. When the traffic density is above a certain value (e.g., when vehicles are in congested traffic scenarios), one of the most serious problems is the increase of packet collisions and medium contentions among vehicles which attempt to communicate. Our proposed technique, namely Selective Reliable Broadcast protocol (SRB), is intended to limit the number of packet transmissions, by means of opportunistically selecting neighboring nodes, acting as relay nodes. As a result, the number of forwarder vehicles is strongly reduced, while network performance is preserved. SRB belongs to the class of broadcast protocols, and exploits the traditional vehicular partitioning behavior to select forwarders. Each cluster is automatically detected as a zone of interest, whenever a vehicle is approaching, and packets will be forwarded only to selected vehicles, opportunistically elected as cluster-heads. In respect of traditional broadcast approaches, the main strengths of SRB are the efficiency of detecting clusters and selecting forwarders in a fast way, in order to limit the broadcast storm problem. Simulation results have been carried out both in urban and highway scenarios, in order to validate the effectiveness of SRB, in terms of cluster detection and reduction of number of selected forwarders.
Keywords :
protocols; telecommunication network reliability; vehicular ad hoc networks; SRB; VANET; broadcast storm problem effect; cluster detection terms; cluster-heads; forwarder vehicles; highway scenarios; opportunistically selecting neighboring nodes; packet collisions; packet transmissions; relay nodes; safety applications; selective reliable broadcast protocol; urban scenarios; vehicular ad hoc networks; vehicular communication protocol; vehicular partitioning behavior; Delay; Protocols; Reliability; Road transportation; Storms; Throughput; Vehicles; VANETs; broadcast storm problem; cluster-based protocol;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mobile and Wireless Networking (iCOST), 2012 International Conference on Selected Topics in
Conference_Location :
Avignon
Print_ISBN :
978-1-4673-0935-6
Type :
conf
DOI :
10.1109/iCOST.2012.6271297
Filename :
6271297
Link To Document :
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