Route Failure Management Technique for Ant Based Routing in MANET

In this paper we describe route failure management technique for ant based routing in Mobile Ad Hoc Network (MANET), inspired by Ant colony Optimization and enhanced by Fuzzy logic technique as failure management. In Ant based route discovery, the transmission delay of each link, processing delay at each node, the available bandwidth capacity of each link, and the number of hops visited are collected by the ant agents to estimate the path preference probability. Then the route with higher preference probability is established. For failure management, the node mobility and the link disconnection are predicted using the fuzzy logic and based on this predicted results, route or node failure is identified. Then an alternate path can be established. By simulation results, we show that the routing protocol attains good packet delivery ratio with less packet drop and delay. Index Terms—ACO, Ant based routing, Fuzzy logic, MANET, Quality of service (QoS) ——————————  ——————————