Ant Colony Algorithm in MANET-Review and Alternate Approach for Further Modification

Mobile ad hoc network(MANET) is the latest application of telecommunication. This is one of the most innovative and challenging area of wireless networking. Ant Colony Algorithm has been used in Mobile Network since long because of isomorphism between them. Pheromone graph and stigmergic architecture of ant colony algorithm are comparable with structure & constraints of communication network. In this paper, A literature survey about the application of ACO is given. In this paper we review ANT algorithm and different approaches proposed by researchers for the improvement of routing performance. In this proposed work, ACO will be used in case of link failure. Path will be discovered by reactive routing, and maintained by periodically generating HELLO messages by all the nodes in the link. All nodes in the link will also find an alternate route for next to next node proactively. By using this method, throughput, and end to end delay parameters can be improved probably the on the cost of increase in the overhead. Overhead will increases in proactive route finding at the same time number of route failure reduces so the bits required in alternate route finding will reduce.