Ant Colony Based Node Disjoint Local Repair in Multipath Routing in MANET Network

Routes discovery that can provide reliable data transmission in Mobile Ad-hoc Networks is challenging due to its wireless channel characteristics and dynamic transmission environment. Link failure frequently occurs in ad-hoc networks due to nodes' mobile nature, which is not static to their position. The dynamic characteristic of the mobile ad hoc network facilitates multi-path routing protocols as a novel research area. This paper comprises an approach based on ACO acknowledge as NDLR-MP, an ACO-based node-disjoint multi-path routing protocol using AODV protocol. The proposed protocol intends to find all node-disjoint paths from source to destination in a single route discovery process that will conclusively minimize the routing control overhead. In this approach (NDLR-MP), the data packet transportation is initialized just after the first path is determined, wherein all the other secondary routes are also concurrently discovered. Additionally, we have also suggested an efficient local route repair method that redirects the current traffic to an available route if a broken link to the next hop is positioned towards the destination. The proposed route detection and maintenance methods can be considered as performance evaluation metrics. Moreover, results obtained on the Network Simulator (EXata 2.0) have shown the performance and effectiveness of the proposed approach of NDLR-MP in contrast to the AODV protocol, which has significantly amplified the performance of the provided protocol. The parameters like route availability, control overhead, average E-2-E, and PDR are comparing with the existing protocol.