Wireless Cellular Technologies and Convergence

Abstract

Mobile communication technologies have gone through with several innovative improvements by developing various multiple-access procedures like TDMA, FDMA, CDMA, WCDMA, EDGE etc., which are used for wireless communication. But a big challenge is to select the right technology for the applications. Common wireless technologies are using radio waves. With radio waves distances can be short, such as a few meters for television or thousands or even millions of kilometres for deep-space radio communications. Wireless communications also use other electromagnetic wireless technologies, such as light, magnetic or electric fields or sound. Mobile wireless technologies have experienced 4 or 5 generations of technology revolution and evolution in the past few decades, namely from 1G to 4G. Current research in mobile wireless technologies concentrates on high level implementation of 4G technology and 5G technology. The architecture of future 5G systems, their performance, and mobile services are requiring to be clearly define. Expectations we can set for 5G technology are, the convergence of maximum of current mobile communication networks with other complementary radio access technologies. As a result, 5G technology will not be a single radio access interface but rather a ��network of networks��.