Improved LeDiR technique for Fault Node Recovery in Wireless Sensor Network

Wireless Sensor Networks have gained attention of researchers because of its wide area applications like search and rescue operation and battlefield reconnaissance. WSN consist sensor nodes which monitor the environmental conditions such as temperature, humidity. These Sensor nodes are inherently prone to failure due to constrained resources and there deployment in harsh environment. Nodes get failed because of limited energy. In this study we are dealing with those nodes whose energy get exhausted and act as fault node. In previous techniques when failure occur then its neighbor node moves towards failure position which extend the path between nodes and some load varies due to individual relocation of nodes, And LeDiR uses block movement from recovering failure, it contain less number of children replace the fault node which effect the coverage of the network. In this study we propose an Improved LeDiR technique for fault node recovery by providing extra node (actor node) when the energy of the cluster head going down. Actor nodes have high capabilities, high power. Simulation results indicate that propose technique perform better than previous technique i.e. LeDiR