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Publication Type : Conference Proceedings
Publisher : 2010 Second International Conference on COMmunication Systems and NETworks (COMSNETS 2010)
Source : 2010 Second International Conference on COMmunication Systems and NETworks (COMSNETS 2010) (2010)
Keywords : Analytical models, Batteries, battery capacity, CADCAM, Communication system control, Communication system traffic control, Computer aided manufacturing, continuously active mode, energy consumption, infrastructure, Radio communication, short file downloads, STA, static power save mode, TCP traffic, telecommunication power supplies, Telecommunication traffic, Traffic control, wireless LAN, WLAN
Campus : Bengaluru
School : School of Engineering
Department : Electronics and Communication
Year : 2010
Abstract : We develop analytical models for estimating the energy spent by stations (STAs) in infrastructure WLANs when performing TCP controlled file downloads. We focus on the energy spent in radio communication when the STAs are in the Continuously Active Mode (CAM), or in the static Power Save Mode (PSM). Our approach is to develop accurate models for obtaining the fraction of times the STA radios spend in idling, receiving and transmitting. We discuss two traffic models for each mode of operation: (i) each STA performs one large file download, and (ii) the STAs perform short file transfers. We evaluate the rate of STA energy expenditure with long file downloads, and show that static PSM is worse than just using CAM. For short file downloads we compute the number of file downloads that can be completed with given battery capacity, and show that PSM performs better than CAM for this case. We provide a validation of our analytical models using the NS-2 simulator.
Cite this Research Publication : P. Agrawal, Kumar, A., Kuri, J., Manoj Kumar Panda, Navda, V., Ramjee, R., and Padmanabhani, V. N., “Analytical models for energy consumption in infrastructure WLAN STAs carrying TCP traffic”, 2010 Second International Conference on COMmunication Systems and NETworks (COMSNETS 2010). 2010.