AODV Routing Protocol in VANETs in Comparison with OLSR and DSR #ijsrd

IJSRD Recently Published Good Article on AODV which shows the comparison with OLSR and DSR


Title : Earthquake Risk Reduction Development and Disaster ManagementProgramme in India

Abstract :- Vehicular Ad hoc Network (VANET) is a new communication paradigm that enables the communication process between these vehicles which acts as nodes in the network. Various methods of data dissemination in VANET are used to inform the vehicles about the dynamic road traffic conditions for achieving safe and efficient transportation. Ad-hoc On-demand Distance Vector (AODV) is a reactive routing protocol designed for the adhoc networks. AODV is an unicast routing protocol which establishes a route only when a node wants to send data packets. AODV involves route discovery and route maintenance process. Due to large delay in the route discovery process and due to route failure which may require a new route discovery process, the data transmission rate decreases and network overhead increases. In this paper we have discussed AODV protocol and its comparison with OLSR and DSR routing protocol. 

Key words: VANET, AODV, OLSR, DSR

Since their arrival in the 1970s, the use of wireless communication technology has increased. An ad hoc wireless network consists of mobile nodes which communicate with each other without any infrastructure. Vehicular Ad hoc Network (VANET) is a new technology integrating ad hoc network, WLAN and cellular technology to achieve intelligent inter-vehicle communications and improve road traffic safety and efficiency. IEEE formed the IEEE 802.11p task group for Wireless Access in Vehicular Environments (WAVE)[1]. VANET is a new distinctive form of Mobile Ad Hoc Network (MANET). Without having any infrastructure and legacy client and server communication, VANET is a highly autonomous network where each vehicle in it acts as a wireless router or a node to communicate with nearby vehicles and fixed roadside equipment. In VANET the movement of vehicles is affected by the factors like the structure of the road, traffic congestion and traffic rules. VANET involves topology which changes very rapidly and also the network gets disconnected frequently.

CONCLUSION

Many routing protocols have been proposed for ad hoc networks. A protocol can perform worse or better than other protocols depending upon scenario of ad hoc networks.After reviewing different approaches we can conclude that AODV is better than OLSR and DSR in terms of packet delivery ratio and end-end delay. Though some improvement needed in AODV routing protocol because the route discovery process on route failure causes a great delay.  

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