Tremendous Evolution has been done from the day telephone was invented over the last few decades. The number of consumers has reached over a billion with the advent of new features and the basic need of communicating with a distant relative who stays miles apart in all possible ways. Technology has improved from only voice calls to video conferencing and may pave the way for High Definition video conferencing in near future, and Fifth Generation is the starting point for this. The packet transfer data communication service begun and consequently the data rates began increasing in the third and fourth generations. The microwave spectrum has become saturated due to increase in the number of mobile devices and now new spectrum needs to be legalized to improve the data rates to Gigabits. This paper studies the various technologies that are seen as the components for fifth Generation Networks like the Air interface, Spectrum and Antennas. This paper studies the basic layout for its architecture. However increasing carbon emissions and hazardous environmental impact of generating electronic waste in excess needs to be understood and efforts should be made to reduce it. This paper studies the various technologies used in Fifth Generation and how Cloud Radio Access Network can help advanced future generation networks transform to Clean and Green Networks.

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Fifth Generation Air Interface Antennas Radio Access Networks.