© 2012, IJARCSSE All Rights Reserved Page | 309 Volume 2, Issue 7, July 2012 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com Comparative Analysis of Routing in MANET Anju Gill Chander Diwaker Research Scholar, CSE Department Assistant Professor, CSE Department UIET, KUK, Haryana, India UIET, KUK, Haryana, India Abstract: Mobile ad-hoc network is one of the most encouraging research areas. However due to high mobility involved, routing becomes of the most critical factor and need to be improved in terms of communication. Being a stand alone network, infrastructure less that includes collection of mobile devices communicating over wireless links need proper route for transferring of data packets. This paper just presents the impact of comparison of different routing protocol in terms of different parameters. Keywords— Routing, security, flooding, DBF, unicast, multicast. I. INTRODUCTION Mobile ad hoc network is collection of wireless computers (or nodes) establishing a network in which nodes communicate with each other by forwarding packets within and outside range of direct wireless transmission. Such type of networks also known as Mobile Ad Hoc multi-hop wireless networks does not have any requisite for fixed infrastructure or central control such as base station or access point, and can be set up according to the demand anywhere as required [1].Routing is one of the centralized problem in wireless networks that attracts the attention of researchers. It uses point-to-point multi-hop routing instead of a static network infrastructure to provide network connectivity. Flowchart shown in figure 1 depicts working of general ad-hoc network. They have several salient characteristics: 1) Dynamic topologies 2) Bandwidth- constrained, 3) variable capacity links 4) Energy- constrained operation 5) Limited physical security etc. Therefore the protocols for wired networks cannot be directly used for wireless networks [2]. Figure 1: Working of a general Ad-Hoc Network Start Nodes send signal to find neighboring node within range Synchronizing between nodes Sender node sends message to receiving node Is Receiving node ready Receiving node send back ready signal Wait for sometime until receiving node ready Communication Termination process No Yes Start