TY - CHAP AU - Kuo-Chang Ting AU - Hwang-Cheng Wang AU - Fang-Chang Kuo AU - Chih-Cheng Tseng AU - Ping Ho Ting ED - Sameh Gobriel Y1 - 2012-04-04 PY - 2012 T1 - The Energy Efficient Techniques in the DCF of 802.11 and DRX Mechanism of LTE-A Networks N2 - The topic of "Energy Efficiency in Communications and Networks" attracts growing attention due to economical and environmental reasons. The amount of power consumed by information and communication technologies (ICT) is rapidly increasing, as well as the energy bill of service providers. According to a number of studies, ICT alone is responsible for a percentage which varies from 2% to 10% of the world power consumption. Thus, driving rising cost and sustainability concerns about the energy footprint of the IT infrastructure. Energy-efficiency is an aspect that until recently was only considered for battery driven devices. Today we see energy-efficiency becoming a pervasive issue that will need to be considered in all technology areas from device technology to systems management. This book is seeking to provide a compilation of novel research contributions on hardware design, architectures, protocols and algorithms that will improve the energy efficiency of communication devices and networks and lead to a more energy proportional technology infrastructure. BT - Energy Efficiency in Communications and Networks SP - Ch. 5 UR - https://doi.org/10.5772/38014 DO - 10.5772/38014 SN - PB - IntechOpen CY - Rijeka Y2 - 2024-03-28 ER -