Fundamentals of Cognitive Radio
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 5
Abstract
This document gives an overview of the fundamental concepts related to the working of Cognitive Radio. In today’s world, where the demand for wireless applications and services is increasing beyond limits and at the same time, the availability of radio spectrum is diminishing greatly, it is highly required that a technology be developed that could help improve the efficient utilization of the limited spectrum. The concept of Cognitive Radio (CR) was developed with this idea and it has become a great success by allowing more and more users or services to utilize the available spectrum. Cognitive Radio helps is basically rooted on the concept of sensing the radio environment around it and dynamically allotting or sharing the spectrum with additional users at times when the licensed users do not need it, thereby helping in uniformly distributing the usage of the spectrum with minimal or no interference caused to the primary users. The different spectrum sensing techniques and dynamic spectrum access methods employed by the CR are also discussed in this paper.
Authors and Affiliations
Nayana P. K.
Keywords
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