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Reducing energy consumption on mobile devices with WiFi interfaces

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4 Author(s)
Tao Zhang ; Telcordia Technol., Piscataway, NJ, USA ; S. Madhani ; P. Gurung ; E. van den Berg

Emergence of mobile handheld devices with WiFi (IEEE 802.11) interfaces such as WiFi phones, WiFi-cellular dual-mode phones and PDAs (personal digital assistants), allow users to take full advantages of heterogeneous radio technologies. WiFi, however, was not originally designed for energy-constrained handheld devices. As a result, the standby times of a handheld device with a WiFi interface is significantly lower than what people typically experience with today's cellular phones. This paper presents and evaluates a system-level power management method devices with WiFi, or other high energy-consuming network interfaces, to significantly increase their standby times without modifications to WiFi and upper layer protocols and implementations.

Published in:

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.  (Volume:1 )

Date of Conference:

28 Nov.-2 Dec. 2005