AODV with sufficient bandwidth aware routing protocol

Congestion is a major problem in mobile ad hoc network (MANET) which causes long delay and significant loss of data packets, and increases the routing overhead and battery power consumption. The shortest path route seldom offers the optimal route, especially when it traverses the congested area of the mobile network. This paper proposes a novel AODV with Sufficient Bandwidth Aware (AODV+SBA) routing protocol which significantly improves the performance of on-demand routing protocols by discovering better routes to avoid congestion and reducing excessive routing overhead. The ns-2 simulation results illustrate the improvement of network performance and stability by reducing data packet delay and routing overhead and increasing packet delivery ratio, under high traffic load. Moreover, in case of low-to-medium traffic load, its performance is close to the popular AODV routing protocol and the quality of its properties is maintained. Copyright © 2010 ACM.