DATA LOSS PREVENTION IN CONGESTION PRONE WIRELESS SENSOR NETWORK USING VCLR MODEL

Abstract

In WSN source node generate an event within the cluster at that time this collected information forward towards sink node through cluster head node. Cluster head acts as intermediate node between sink node and source node. The congestion may occur at the cluster head and this prompts to data loss also affect the reliability of the network. In existing system cluster head only performs normal data packet transmission from source node to sink. Due to insufficient buffer size at cluster head node there is more packets drop during the transmission of packets. So, this system gives lower packet delivery ratio. The current work concentrates on improving reliable data collection at sink node. In this proposed system database file attached to the cluster head node for storage of data packets. The data packets which are lost during the transmission from cluster head node to sink node. The drop packets are recovered from the attached database file. The recovered packets are resend to sink node by cluster head node. So, we can improve packet delivery ratio, more number of received packet, less number of drop packet, lesser end to end delay.