Comparison of Manet Routing Protocols

Ad-hoc network are autonomous network that do not rely on a pre-defined infrastructure and can be set up anywhere at any time. In ad hoc network each node individually acts as a mobile router and communicates to each other to send and receive packets. Wireless ad-hoc network is group of mobile nodes that communicates over a common wireless channel. Each node follows a routing algorithm to route the packets from a source to desired destination. Mobile Ad-Hoc Network (MANET) is infrastructure less collection of mobile nodes that is connected through a wireless medium forming speedily changing topologies. Due to rapid deployment, the MANET has attracted the researchers. The researchers have proposed various routing protocols for MANET. This paper discusses these broad ranges of MANET routing protocols. Further the paper reviewed the comparison among existing protocols on the basis of some selected performance metrics such as scalability, overhead, reliability etc.