Abstract
The term 5G is sometimes used to encapsulate all existing technologies for all time availability, higher coverage area and higher network density with respect to cell and devices. 5G system will be compatible with existing technologies such as 2G, 3G, 4G, WiFi etc. and will support more than ten thousand times data traffic compare to 4G and data downloading more than 1000 times compare to 4G. It will run on Ultra High Spectrum Band that will carry the future Internet, it is not only evolution but it is a revolution in communication era. In this paper we present several emerging technologies that support 5G standard along with research problems and challenges for 5G systems.