In Wireless Sensor Network congestion leads to the degradation of communication links that result in the decreased the reliability and waste of energy which one of the scarcest resources of sensor network. In cluster based environment each sensor senses the information and forwarded to its cluster head and cluster head will forward that data packet towards the sink. But the cluster heads are one hop from sink node so that they acts as intermediate nodes and hence there are more chances of

more »

... tion and leads to packet drop i.e. nothing but data loss. In my model I recover this data loss by using my loss recovery model where I attach the database to the cluster heads and those packets which are drop at cluster head due to congestion are push into the database and re-transmitted to the sink with high priority.