Design of Spectrum Sensing System

Abstract

Current spectrum management is licensed in a definite frequency band, and since a large part of radio spectrum allocation is already done, vacant bands are not available to either effectively use new services or develop existing ones. As a solution to this, it is required to find means for improved spectrum utilization creating situations for access of dynamic spectrum. In these days, spectrum scarcity is a prime hurdle faced by all users. This problem gives rise to the idea of cognitive radio, where available channels for communication are detected and instantly moved into vacant channels. In this paper, matched filtering and energy detection methods are covered, where our motive is the all-time presence of spectrum to all users.