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Adaptive Packet Scheduling Scheme for Enhancing the PSM Performance of Mobile Devices
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 Title & Authors
Adaptive Packet Scheduling Scheme for Enhancing the PSM Performance of Mobile Devices
Park, Young Deok; Jung, Kyoung-Hak; Suh, Young-Joo;
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 Abstract
Wireless LAN (WLAN) interface is one of the major sources drastically depleting the battery power of mobile devices such as smartphones and tablets. Most commercial mobile devices employ a power saving technique putting their WLAN interface into a sleep state when there is no network traffic, and thereby, save the battery power. However, since an access point (AP) just transmits the packet(s) received from a server to the corresponding mobile device immediately, it may cause a problem that the mobile device constantly remains in an awake state so that its battery power is rapidly drained. In this paper, we point out this problem and propose a new scheme that can save the mobile device's battery power with an adaptive packet scheduling at the AP side. From the experimental results based on a testbed, we found that the proposed scheme outperforms existing schemes over 50% in terms of power saving.
 Keywords
IEEE 802.11;S-PSM;A-PSM;Tail-energy;EWT;
 Language
Korean
 Cited by
 References
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