Power Consumption in Wireless Networks: Techniques & Optimizations

Power consumption has become an important concern when it comes to the implementation phase of wireless devices. Especially, in mobile phones, where design characteristics like size and weight are forbidden the use of large batteries, minimizing power loss is quite challenging. In this paper, power issues of new generation´s cellular phones have been explored in detail, at a system level. The study presents that CPUs, memories and the device´s display are the modules that consume most of the power resources. In an attempt to provide solutions against the increasing energy demands, various power managements techniques are proposed. Among them the most well known is the voltage and frequency scaling techniques.