Analysis and Application of Cognitive Radio on 4G Communications

Abstract

Abstract

Nowadays network services are available anywhere and anytime through the advancement in wireless communication technology. Several technology and generation are introduced for wireless communication such as 2.5G, 3G etc. But for faster and reliable communication wireless generations are improved—4G technology is one of them. 4G communication systems are being developed to solve the various problems faced by the current communication systems (3G, 2.5G). 4G will be an intelligent technology that will reduce the number of different technologies to a single global standard. Cognitive Radio (CR) is the key enabling technology for next generation networks. CR techniques provide the capability to use or share the spectrum in an opportunistic manner. With the use of CR, 4G wireless networks will support global roaming across multiple wireless and mobile networks. In this paper, analysis and application of CR in 4G communications is reviewed. IEEE 802.22 networks are cognitive technology-based networks which will enhance the performance of 4G communication systems. IEEE 802.16h (WiMAX) provides extensions to support unlicensed coexistence.

Keywords: Cognitive Radio (CR), WiMAX, Fourth Generation (4G), Federal Communications Commission (FCC), Cognitive Engine (CE)