POWER OPTIMIZATION IN THE THIRD GENERATION MOBILE PHONES

Abstract

Due to its improved capabilities for mobile communication, power consumption in 3G phones acts a major role that affects overall system performance. Therefore, the research viewed the problem of power optimization in 3G phones. The focus is to highlight the high power consumption in the system and its background and enlight the technologies and suggestions to solve this problem. Chapter one "introduction" briefly reviews the various cellular systems: analog and digital systems including W_CDMA systems .also the main problems of 3G mobile systems are stated in this chapter beside the objective of the research. Chapter two "the power consumption in 3G phones" gives some view of 3G phones ,its characteristics , capabilities, its power consumption and the factors that lead to the high power consumption. Chapter three "power saving technologies " discussed some examples of power saving technologies that is applied to 3G terminals. Chapter four "power optimization via soft handover control" highlighted the role of handover process on power consumption .some experiments are carried to determine battery capacity at various modes of operation .at the end of this chapter , simulation of power consumed at handover ,and the results are plotted. In chapter five "conclusion" we stated the results of the research. we see that we can optimize power consumption via control of handover power by minimizing handover duration or handover rate .