ENERGY-AWARE MAC FOR CRWSN
Bala Vishnu J 1, Saranya J 2, Bhagyaveni M.A 3
1,2,3 UG student, Department of ECE, CEG, Anna University, Chennai, Tamil Nadu, India.
Increase in demand for Spectrum allocation in ISM bands and Underutilization of some licensed bands lead to the development of a technique called Cognitive Radio in Wireless Sensor Networks. Since WSN usually operates in ISM bands we need to acquire Cognitive Radio into it without sacrificing its energy efficiency. In this paper, we propose an Energy-Aware MAC (EA-MAC) protocol which minimizes the number of spectrum sensing nodes based on the maximum probability of detection and adopting low duty cycled design for WSN nodes. Simulation results shows that the proposed EA-MAC has considerable better probability of detection and less false alarm compared to Eigen-value and cyclo-stationary based hybrid cooperative spectrum sensing methods.
