A Review of AODV Based Routing Protocols for Mobile Ad-hoc Network

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Ashwini Pansare


A Mobile ad-hoc network(MANET) is the cooperative engagement of collection of (typically wireless) mobile nodes without the required intervention of any centralized access point or existing infrastructure. To provide optimal communication ability, a routing protocol for such a dynamic self-starting network must be capable of unicast, broadcast, and multicast. This paper discuss about three Variants of AODV protocols Enhanced AODV- EAODV[1],Improved Multicast AODV- IMAODV[2],Mobility aware AODV -MAAODV[3]. EAODV[1]extends the original HELLO message in AODV with lower overhead and at the same time prevent the potential unidirectional links in the network to some extent. The protocol can reduce the route load and has a better performance than AODV in the network with potential unidirectional link. IMAODV[2] proposes an Improved Multicast Ad hoc On Demand Distance Vector (IMAODV) protocol based on Ad hoc On Demand Distance Vector (AODV) and Multicast AODV (MAODV) protocol to support reliability and multicasting for on-line routing of delivery-guaranteed multicasts. MAAODV[3] protocols perform periodic quantification of nodes mobility for the sake of establishing more stable paths between source/destination pairs, hence, avoiding the frequent link breakages associated with using unstable paths that contain high mobile nodes The paper aims at study of these three protocols and compare them on three metrics Routing Load, Reliability and Packet delivery Ratio and End to End Delay.

Keywords: Ad hoc Network, Multicasting, Routing load , Packet delivery ratio, AODV, MAODV.


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