Title :
Improving Energy Efficiency through Bandwidth, Power, and Adaptive Modulation
Author :
Zhang, Shunqing ; Chen, Yan ; Xu, Shugong
Author_Institution :
Huawei Technol. Co. Ltd., Shanghai, China
Abstract :
The pressure of the energy bill from operators and the request of the environmental protection from the governments and publics results in more urgent requirement on the energy consumption and CO2 emission. Traditionally, adaptive modulation has been proven to be an efficient solution to improve the system performance over the radio fading channels. To obtain the design insights for energy efficient adaptive modulation scheme, we shall introduce a circuit-level power modeling to analyze the effects and characterize the bandwidth-power-energy efficiency tradeoff relations for wireless communication systems. We show that different bandwidth, power and modulation schemes shall be used under different channel conditions to maximize the energy efficiency and the adaptive modulation scheme can greatly help to improve the tradeoff curves.
Keywords :
adaptive modulation; energy conservation; fading channels; CO2 emission; adaptive modulation; bandwidth-power-energy efficiency tradeoff relations; channel conditions; circuit-level power modeling; energy bill; energy consumption; environmental protection; radio fading channels; wireless communication systems; Adaptive systems; Bandwidth; Equations; Mathematical model; Modulation; Power demand; Wireless communication;
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd
Conference_Location :
Ottawa, ON
Print_ISBN :
978-1-4244-3573-9
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2010.5594367