CSPDA: Contention and stability aware partially disjoint AOMDV routing protocol

Mobile Ad-hoc NETworks (MANET) consists of mobile nodes that can move randomly resulting in a very dynamic network topology. MANET could use single or multipath routing protocols. Multipath routing protocols usually select more than one path between any source and destination. Stability based partially disjoint AOMDV (SPDA), is a multipath routing protocols that selects partially disjoint paths that are stable based on the history of these multiple paths kept by each node. In this paper a new protocol which is based on SPDA is presented and evaluated. The proposed protocol gets multiple loop-free partially link disjoint paths based on links stability and extends SPDA by tacking wireless carrier perceived contention level into consideration. The proposed protocol is called Contention and Stability-based Partially Disjoint AOMDV (CSPDA) protocol. Results show an obvious improvement of CSPDA over SPDA regarding the throughput and end to end delay performance metrics. Experiments have been conducted using Glomosim simulator package while varying different performance parameters such as the mobility speed of wireless nodes as well as the number of connections initiated by various nodes in the ad hoc network.