Efficient Utilization of Node Energy by Detecting and Preventing Denial of Sleep Attack

A Wireless Sensor Network is a self-configuring network of small sensor nodes communicating among themselves using radio signals, and deployed in quantity to sense, monitor and understand the physical world. WSN provide a bridge between the real physical and virtual worlds.WSNs have a wide range of potential applications to industry, science, transportation, civil infrastructure, and security.WSNs are particularly exposed to several kinds of attacks. Due to energy constrained property in WSN, Denial-Of-Sleep attacks are recognized as a serious attack. Attack of this type exhaust the energy of sensor nodes and reduce the sensor lifetime within few days compared to other attacks on WSN. In this paper we propose a challenge and response method to detect denial of sleep attack for efficient utilization of node energy. Simulation reveals that our proposal is energy efficient and able to achieve significant performance in preventing network nodes from Denial-Of-Sleep attack