Date Added: Jan 2013
The number of users and the use of telecommunication systems are increasing rapidly and this result in greater demands on energy usage. Based on the extensive Life-cycle Assessment (LCA) conducted by various network operators, it is learned that energy consumption in the usage phase of its radio access networks is the most imminent factor relating to impact on the environment. The amount of CO2 emission is increasing in communication system, in parallel with increase in mobile consumers. And it is also observed that current wireless networks are not energy efficient, mainly the Base Stations (BS). This alarming growth in mobile users forces the people to use higher data rate mobile broadband.