A Neighbor Coverage-Based Probabilistic Rebroadcast for Reducing Routing Overhead In Mobile Ad Hoc Networks
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 1
Abstract
Mobile ad hoc networks consist of a collection of mobile nodes without having a fixed infrastructure. Due to the infrastructure less network, there exist frequent link breakages which lead to frequent path failures and route discoveries. A mobile node blindly rebroadcasts the first received route request packets unless it has a route to the destination, and thus it causes the broadcast storm problem. So, rebroadcast is very costly and consumes too much network resource. In the existing System, different mechanisms are proposed for improving the routing performance. In the gossip-based routing overhead is reduced. However, when the network density is high, the gossip-based approach is limited. In the Dynamic Probabilistic Route Discovery scheme,eachnodedeterminestheforwardingprobability according to the number of its neighbors and the set of neighbors which are covered by the previous broadcast. So, coverage-based probabilistic rebroadcast protocol for reducing routing overhead in MANET propose a novel Ra rebroadcast delay to determine the rebroadcast order, and then it obtain the more accurate additional coverage ratio by sensing neighbor coverage knowledge. The advantages of the neighbor coverage knowledge and the probabilistic mechanism, which can significantly decrease the number of retransmissions so as to reduce the routing overhead, and can also improvetherouting performance. To improve the quality of routing particularly in mobile ad hoc networks, improved routing protocol have been proposed such as Optimized Link State Routing Protocol (OLSR).
Authors and Affiliations
S. Divya
Keywords
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