Enhancement of Tolerant Mechanism for AODV Routing Protocol by Using Probabilistic Approach
Keywords:
AODV, MANET, route failure, malicious node.Abstract
Mobile Ad-Hoc Network is a wireless network without infrastructure. It is self-configuring network of nodes connected via wireless without any form of centralized administration. This kind of networks is currently one of the most important research subjects, due to the huge variety of applications (emergency, military, etc...). Efficient routing protocols will make MANETs reliable. Multiple path routing protocols are shown to be performance-effective alternatives over single-path routing for ad hoc networks and it represents a promising routing method for wireless mobile ad hoc networks. Multi-path routing achieves load balancing and is more resilient to route failures. aim of this thesis is to improve the route error tolerant mechanism of Adhoc On demand Distance Vector Routing Protocol (AODV) for the dynamic MANET system. In traditional AODV, if the route error occurs at the middle of transmission means the source node reconstruct the route to start the transmission from the beginning. So more delay is occurred in the network. In the proposed mechanism, every node contains two version’s of routing table , the route error RERR is not sent to the source node. It is send to the Previous node, and then previous node check own old version of routing table and if there are any path available for that destination then it uses that path for transmission.
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