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M-PSM: Mobility-Aware Power Save Mode for IEEE 802.11 WLANs

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3 Author(s)
Xi Chen ; Iowa State Univ., Ames, IA, USA ; Sunggeun Jin ; Daji Qiao

With the proliferation of Wi-Fi equipped mobile devices such as smart phones, it becomes even more important to design and implement effective power management schemes for Wi-Fi interfaces so that the battery lifetime can be prolonged. In this paper, we propose an enhancement to the default 802.11 Power Save Mode (PSM), called M-PSM, which exploits additional power-saving opportunities by considering user mobility and detailed traffic condition when making the sleep/wakeup schedules for Wi-Fi interfaces. We have implemented M-PSM in the Madwifi device driver and demonstrated its effectiveness via experiments and trace-based simulations.

Published in:

Distributed Computing Systems (ICDCS), 2011 31st International Conference on

Date of Conference:

20-24 June 2011