One of the enhancement that was made to AODV is called Reverse AODV (RAODV). The RAODV routing algorithm considers the stability of the link during route discovery phase. It was found that, such an enhancement reduces the routing overhead of AODV protocol. However, it was observed that, the packet loss at any node generally occurs due to the congestion across the link. Thus by considering the congestion across the link we can obtain a more stable path with less packet loss. However, RAODV does not take into consideration, congestion across the link during path selection. This paper takes into consideration, the active load of the path during route discovery process and selects a path which is less congested for routing packets. The algorithm is simulated using NS2 and the results are compared with the RAODV. The results of comparison indicate that, the modification indeed reduces the packet loss and provides a better throughput in a small network environment.
MANET, AODV, RAODV CA-AODV, Active Load, Congestion
