Connection Oriented Multipath Routing Protocol for Ad hoc Networks

In order to provide connection oriented service in Ad hoc networks, a novel multipath routing protocol, label switching multipath routing (LSMR), is proposed by combining connection oriented property of label switched path in multi-protocol label switching (MPLS) technology and advantage of multipath routing. LSMR can set up multiple node disjoint label switched paths on demand between communicating nodes and allow the entire packet forwarding operation to be executed within the link layer without intervention of the network layer. Simulation results show that compared with Ad hoc on-demand distance vector routing protocol (AODV), LSMR can decrease end-to-end delay and routing overhead while packet delivery ratio is increased.