Transmit power control has been largely proposed as a solution to improve the performance of packet radio systems in terms of increased throughput, spatial reuse and battery lifetime for mobile terminals. However, the benefits of transmit power control schemes on these different performance figures may strongly depend on the employed PHY technology and channel access mechanism. In this paper, we focus on the effects of power control on the energy consumption of WiFi network cards. By means of several experimental tests carried out under different operation conditions and modulation schemes, we try to justify why the reduction of the transmission power has a marginal effect on the overall energy consumption.
Di Piazza, F.I., Mangione, S., Tinnirello, I. (2009). On the effects of transmit power control on the energy consumption of WiFi network cards. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? Sesta conferenza internazionale ICST QShine 2009 sul tema "Heterogeneous Networking for Quality, Reliability, Security and Robustness", Las Palmas de Grain Canaria (Spagna).
On the effects of transmit power control on the energy consumption of WiFi network cards
DI PIAZZA, Francesco Ivan;MANGIONE, Stefano;TINNIRELLO, Ilenia
2009-01-01
Abstract
Transmit power control has been largely proposed as a solution to improve the performance of packet radio systems in terms of increased throughput, spatial reuse and battery lifetime for mobile terminals. However, the benefits of transmit power control schemes on these different performance figures may strongly depend on the employed PHY technology and channel access mechanism. In this paper, we focus on the effects of power control on the energy consumption of WiFi network cards. By means of several experimental tests carried out under different operation conditions and modulation schemes, we try to justify why the reduction of the transmission power has a marginal effect on the overall energy consumption.
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