Intelligent Wireless Communication System Using Cognitive Radio

Abstract

Radio spectrum has become the most valuable resource of the modern era due to the advancements of wireless technologies. With modern wireless systems, providers aim at offering a wide variety of applications with high data rates. It is often overlooked that as high performance wireless data services are widely deployed, the lack of additional spectrum is becoming a serious issue. Cognitive Radios are the probable solution to the current low usage of the radio spectrum. It is viewed as a novel approach for improving the utilization of the EM spectrum. The Cognitive Radio (CR) is defined as an intelligent wireless communication system that is aware of its environment and uses the methodology of understanding-by-building to learn from the environment and adapt to statistical variations in the stimuli with highly reliable communication whenever and wherever needed and efficient utilization of the radio spectrum. It is the key wireless technology that will enable a more flexible, reliable, and efficient spectrum sharing scheme.