4G Technology and Communications

4G is the fourth generation of cellular wireless standards. It is a successor to the 3G and 2G families of standards. With increasing end user demands for wider service due to the rapid growth and variety of IT (information technology) industry, the service with the data rate of 30 Mbps cannot accommodate the future mobile multimedia environment. Therefore, worldwide radio and mobile communication institutes and companies started the R & D of 4G mobile communications system. The approaching 4G (fourth generation) mobile communication systems are projected to solve still-remaining problems of 3G. 4G seems to be the solution for the growing user requirements of wireless broadband access and the limitations of the existing wireless communication. The goal of this generation is to produce specifications for a new radio-access technology geared to higher data rates, low latency and greater spectral efficiency. This paper is provides technological features of an existing 4G communication ...