Data recovery with energy efficient task allocation in Wireless Sensor Networks

In Wireless Sensor Networks (WSNs) there has been an extensive research going on to extend the life time of the network. Energy efficiency is one of the major concern in WSN´s that impacts the network lifetime. There is a compulsive need to find out new and improved ways to reduce the energy consumption associated with different aspects in WSN due to the fact that energy is a critical and important resource in the design of WSN. In this paper, we focus on an important distribution aspect of WSN, task allocation with energy efficiency that helps in improving the utility of the network. Most previous sensor network lifetime enhancement techniques focused on balancing power distribution, based on assumption of uniform battery capacity allocation among homogenous nodes. This work aims to provide solution to the task assignment problem in heterogeneous WSN that also incorporates the log for data recovery in the event of failure. It has been calculated that the proposed method increases the throughput by 9.14%.