Quick Fault Tolerance Algorithm for Wireless Sensor Network

In The WSNs Energy is the main things of wireless sensor networks (WSNs), A sensor node consume a limited power sources , and it is a irreplaceable part of the sensor node , there are number of researchers find to reduce the energy consumption of the sensor node and increase the time period of the sensor node , some researcher used the cluster head and some researchers used the Gateway to reduce the load of the sensor node , but all are the battery operated so it is difficult to increase the life time of the sensor node , In the DFCA the researcher used the run time recovery of the sensor node when immed iately change occurs in the cluster head, but if the sensor node link with the another gateway at run time and cover that sensor whose are uncovered by the gateway it will do increase the load on the another gateway so it will also die very soon , In this paper sensor nodes will find a new cluster head in their own group at run time .