Issues and Challenges Involved in Multipath Routing with Dymo Protocol

A mobile ad-hoc network (MANET) is a wireless network in which nodes, in the absence of fixed access points, communicate via single or multi-hop paths. Each node in a MANET should thus be able to perform necessary routing functions, and a MANET routing protocol should be able to adapt fast and effectively to sudden changes in network layout. Multipath routing allows the establishment of multiple paths between a single source and single destination node, the knowledge of alternate paths allows to reduce the frequency of route discovery in the presence of link failures. It is typically proposed in order to increase the reliability of data transmission (i.e., fault tolerance) or to provide load balancing. Load balancing is of special importance in MANETs because of the limited bandwidth between the nodes. . Providing trustworthy quality of service guarantees in a MANET is very challenging due to the dynamic and uncertain nature of these networks. We propose to extend DYMO routing protocol for MANETs to a multi-path protocol which uses delay, traffic load etc instead of hop count, as metric for route selection.