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Msc Final Project

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Energy optimization in Mobile Networks
University of Greenwich
MSc Wireless Mobile Communication Systems engineering
By: Basel Barakat
I. Part one
i.
Introduction
A. Research Area
Wireless communication industry is growing exponentially. Today there are over 5 billion people use cellular phones and it is estimated that in the next four years there will be a 7 trillion wireless devices (LI-CHUN& RANGAPILLAI, 2010).The wildly spreading smart phones require a relatively high data rate, which eventually causes more power consumption.
Recent studies are trying to develop a new technique for reducing the power consumption in cellular networks and making it more environment friendly, with taking the efficient power transmitting to the user on their consideration.
The first mobile network consisted of only one base station; currently there are more than 4 million base stations worldwide to satisfy the huge demand on the mobile networks. On average each base station is using about 25MWh per year, which is about 60 percent of the total power consumption of mobile network (NAHAS et al., 2012).
The focus of the proposed project is to increase the energy efficiency of the mobile networks without decreasing the quality of service of the mobile networks; it is combining and improving of suggested mechanisms to improve the existing mobile networks and hopefully to be implemented on future networks.
B. Problems to be addressed
The main issue that faces the decreasing of the energy in cellular networks is that more than
55 percent of the whole power consumption in the mobile operator happens in the base stations (BS’s) (VADGAMA & HUNUKUMBURE, 2011). The base station is the part of the network that is wirelessly connected to the user’s mobile phones. The consequence of reducing the power transmitted by the base station is reducing the coverage area and the

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