Modeling of Energy Consumption for K-Coverage in Wireless Sensor Networks

Abstract

Lifetime in wireless sensor network plays a vital role in the success of different operations in an application specific way. Besides main quality of service features such as node availability, coverage, and connectivity the guaranteed lifetime is one of the key characteristic of many applications for efficient operations in wireless sensor networks. Energy management is important in wireless sensor network since sensors node are equipped with non-rechargeable batteries that limited network lifetime. In this paper, we propose a scheme to guarantee the lifetime of such wireless sensor networks in terms of scary energy by dividing the maximum estimated time in different slots. We propose an algorithm that checks the status of every sensor node at each time slot and conclude that how much energy is spent during performing different operations. The proposed algorithm dynamically changes mode of each sensor node so that the wireless sensor network guarantee lifetime by switching the least number of nodes for achieving k-coverage of the field to sensing node. Simulation results validate the effect of the proposed guaranteed lifetime mechanism.