A New Multi-Path Routing Algorithm with Local Recovery Capability in Mobile Ad hoc Networks

A Mobile Ad-hoc Network is a kind of mobile wireless network in which every node is mobile and autonomous. Since there is no infrastructure in such a network, a highly adaptive routing scheme to deal with the frequent topology changes is required. In mobile ad-hoc networks, there are some critical problems such as node mobility and the limited power of nodes, which can cause the link breakage. Since most routing protocols find single route between source and destination in a route discovery process, a link breakage will invalidate the route, which leads to decrease the packet delivery ratio. In this paper we introduce a routing protocol called MLR-DSR to increase the fault tolerance and packet delivery ratio in DSR. In the presented scheme to transmit the data packet, each source node maintains some information about multiple routes and when a typical route failure occurs, the route will be repaired locally. The experimental results show that this protocol can decrease the packet loss ratio rather than DSR and it is useful for the applications that need a high level of reliability.