multipath routing protocol for reducing congestion and delay….pdf

International Journal puter Applications (0975 –8887) Volume 74–, July 2013 1 Multipath Routing Protocol for Reducing Congestion and Delayin A. Pratapa Reddy Assoc. Professor, Department of Computer Science and Engineering , Ganapathy Engineering College, Warangal, . , Professor, Department of CSE Nagole Institute of Science & technology Hyderabad, . ABSTRACT In this paper, a congestion aware multipath routing protocol in mobile ad hoc networks ()is proposed. The paths which have better bandwidth will be initially selected. For selected paths, first the congestion status of the node is found by using the early congestion detection technique which is based on the queue status and data arrival rate of the nodes. The delay includes weighted channel delay and buffer queuing delay. The paths which have better bandwidth will be initially selected. . If the congestion status is lower than the threshold value, the packets are sent direcrly through the path. If it is more than the threshold value, a congestion aware routingis initiated. In this congestion aware routing, routes having less end-to-end delay will be selected from the backuproutes, so that they have low congestion. Simulation results show that the proposed protocol reduces the end-to-end delay