Congestion and Stability-Aware Multipath Routing Protocol in Manets

Objectives: In mobile ad hoc networks (MANETs), congestion is a main factor while packets transmitted from the source to the destination. The high packet loss, high delay and waste of resource utilization time are occurring due to the congestion. By using the average queue length, the CSAMR (Congestion and Stability-aware Multipath Routing) detects the present congestion level and packets are transmitted through congestion free path.

Methods: Congestion aware technique is introduced for detecting the congestion along the routing path. In this method, the average queue length at the node level is computed based on the estimations. Here the node detects the present congestion stage and sends a warning information message to its neighboring nodes. Finally the packets are transmitting from source to destination along with congestion free path.

Results: The proposed method achieves high performance in terms of packet delivery ratio and end-to-end delay.

Conclusion: The congestion aware method is used to reduce the delay and buffer overflow caused by network congestion and hence it facilitates the network to perform better. In this method, dynamic congestion aware routing method is used for detects the congestion level according to the estimations of the average queue length.