Early Congestion Detection and Optimal Control Routing in Manet

Mobile adhoc networks are composed of mobile nodes communicating through wireless medium, without any fixed backbone infrastructure. In these networks, broadcast storm and congestion are major issues. During route discovery, conventional on-demand route discovery methods in Mobile Ad-hoc NETworks (MANET) employ simple flooding method, where a mobile node blindly rebroadcasts Received Route rEQuest (RREQ) packets until a route to a particular destination is established, it is usually costly and results in serious redundancy, contention and collisions in the network. These problems are widely referred to as the broadcast storm problem. Congestion occurs in any intermediate node when data packets travel from source to destination and they incur high packet loss and long delay, which cause the performance degradations of a network.

Provided by: EuroJournals Topic: Mobility Date Added: Oct 2011 Format: PDF

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