Research Article
Energy Saving Strategies for Mobile Devices using Wake-up Signals
@INPROCEEDINGS{10.4108/ICST.MOBIMEDIA2008.4022, author={gian paolo perrucci and Frank Fitzek and Giovanni Sasso and Marcos Katz}, title={Energy Saving Strategies for Mobile Devices using Wake-up Signals}, proceedings={4th International ICST Mobile Multimedia Communications Conference}, publisher={ICST}, proceedings_a={MOBIMEDIA}, year={2010}, month={5}, keywords={Mobile devices cooperation wireless networks power measurements wake up system overlay networks}, doi={10.4108/ICST.MOBIMEDIA2008.4022} }- gian paolo perrucci
Frank Fitzek
Giovanni Sasso
Marcos Katz
Year: 2010
Energy Saving Strategies for Mobile Devices using Wake-up Signals
MOBIMEDIA
ICST
DOI: 10.4108/ICST.MOBIMEDIA2008.4022
Abstract
Voice-over-IP (VoIP) has rapidly gained popularity in the last years, especially on smartphones platforms. In fact, WLAN chip-sets are becoming more common on smartphones, allowing users to use VoIP services from their mobile devices. On the other hand, the excessive energy consumption of the WLAN chip-set, limits the widespread use of VoIP on mobile phones. As most of the energy is spent when the WLAN is in idle mode waiting for a call, a possible solution is to use a secondary air interface, with lower energy consumption, as a signalling channel to wake up the WLAN radio. In this paper we describe two approaches to address this problem, namely the overlay and cooperative approaches. We present measurements of energy consumption done on a commercial device to show that the presented approaches can reduce the energy consumption for VoIP calls on smart-phones over WLAN.
