Energy Efficient Spectrum Sensing Techniques for Cognitive Radio Based Wireless Networks

Abstract

Cognitive Radio is an intelligent network technology which can sense unused channels over a wireless spectrum and modify parameters enabling more transmissions to improve radio operations. The spectrum is allocated by a regulatory organization and is not used all the time by licensed users which creates spectrum holes. Cognitive Radio allows secondary users to sense these spectrum holes and utilize them when the primary user is not active. It uses various techniques available to sense the unutilized spectrum. In this project we are going to analyze these available techniques and discuss their implementation in an energy efficient way.