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An Overview on Reactive Protocols for Mobile Ad-Hoc Networks

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Author(s): P. Narendra Reddy | CH. Vishnuvardhan | V. Ramesh

Journal: International Journal of Computer Science and Mobile Computing
ISSN 2320-088X

Volume: 2;
Issue: 5;
Start page: 368;
Date: 2013;
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Keywords: MANETS | routing protocol | AODV | DSR | TORA | LAR | unicast routing

ABSTRACT
A Mobile Ad hoc Network (MANET) is a collection of wireless mobile computers forming atemporary network without any fixed infrastructure. Searching for feasible paths, or routing, is verychallenging in mobile ad hoc networks because of frequent topology changes caused by users’ mobility, Allnodes are equal and there is no centralized control or overview. Many different routing protocols based ondifferent features have been proposed to the IETF. Performances of many of these routing protocolshave been evaluated focusing on metrics such as delay, routing overhead, and packet delivery. This ismainly due to the mobility of the nodes. Most existing Proactive routing protocols should maintain a routinginformation in the network at all times all nodes. It may achieved by table driven routing informationdistribution and regular distribution of updated routing information. These are well suited for a small-scalewith high mobility. Here the problem is high routing overhead in mobile ad hoc networks. We drive thisissues, propose the reactive routing protocols. Reactive routing protocols are well suited for a large-scale withmoderate or low mobility. This paper provides an overview of reactive protocols (E.g.: AODV, DSR, TORA,LAR).
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