Formulation of Energy Consumption in Wireless Sensor Network

Wireless sensor networks (WSNs) depends on their reliable operation for extended times without human intervention. Wireless and ad-hoc deployment, which is essential in some scenarios and costeffective in others, prevents the use of a wired energy infrastructure. Wireless Sensor Networks usually battery powered, thus energy-constrained, present energy efficiency as the main challenge. Usually in WSNs the communication consumes most of the energy. But recently wireless sensor nodes are introduced that comprise also energy-consuming sensors, apart from the ‘traditional’ ones like temperature, air pressure and humidity sensors. This paper presents the feasible formulation to express the energy consumption of a wireless sensor network application in terms of its energy constituents, effective realization of the intended application in terms of cost, lifetime, and functionality. Keywords-Energy Consumption, Power Constrained, Sensors, Wireless Sensor Network.