Implementation of Energy Detection Technique for Spread Spectrum Systems

Abstract

Spectrum spreading is a communication technique by which a signal produced by a bandwidth given is intentionally spread over the frequency domain, resulting in a broader signal bandwidth. This helps to give channels immunity by not allowing interference or disruption of any sort, thus ensuring security in communication systems. The Inefficient spectrum use contributes even to the invention of new methods which enable users not allowed to utilize the radio spectrum each time a hole in the spectrum or free space is available. The technology which pinpoints the presence of a licensed radio spectrum user using complex spectrum access techniques is called cognitive radio. The paper’s key contribution is the study and comparison of various spreading techniques implemented in a signal for transmission and further implements the technique for energy detection of spectrum sensing.