Evolution of Mobile Communication Technology towards 5G Networks and Challenges

摘要

Communication on the move has always been sought for its convenience. Today’s mobile communication refers to portable devices operated with battery. Wireless communications is the fastest growing segment of the communications industry. Cellular systems have experienced exponential growth over the last two decades. Future mobile communications focus on everything Wireless in one Device along with Ubiquitous Communication among People and Devices. 5G technology stands for fifth generation.5G network will provide high data rate ,low latency, high reliability energy saving, cost reduction, higher system capacity and massive device connectivity.5G wireless systems is built with five technologies Millimeter waves, small cell, Massive MIMO, Beam forming and Full duplex. Like previous generation 2G, 3G and 4G mobile networks 5G are the digital cellular networks.5G are using the millimeter wave (mm Wave) which provide the higher bandwidth (3-300 GHz).