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M-PSM: Mobility-Aware Power Save Mode for IEEE 802.11 WLANs
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- Authors
- Xi Chen, Sung Geun Jin, Daji Qiao
- Issue Date
- 2011-06
- Citation
- International Conference on Distributed Computing Systems (ICDCS) 2011, pp.77-86
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- 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. © 2011 IEEE.
- KSP Keywords
- Battery lifetime, Device driver, Effective power, IEEE 802.11 WLAN, Mobile devices, Mobility-aware, Power save mode, Smart Phone, Traffic condition, User Mobility, WI-Fi