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Wireless Wakeups Revisited: Energy Management for VoIP Over Wi-Fi Smartphones

Overview IP based telephony is rapidly gaining acceptance over traditional means of voice communication. Wireless LANs are also becoming ubiquitous due to their inherent ease of deployment and decreasing costs. In enterprise Wi-Fi environments, VoIP is a compelling application for devices such as smartphones with multiple wireless interfaces. However, the high energy consumption of Wi-Fi interfaces, especially when a device is idle, presents a significant barrier to the widespread adoption of VoIP over Wi-Fi. To address this issue, the paper presents Cell2Notify, a practical and deployable energy management architecture that leverages the cellular radio on a smartphone to implement wakeup for the high-energy consumption Wi-Fi radio.

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Publisher
Association for Computing Machinery
File Format
PDF
Date Published
May 23, 2007
Format
White Papers
Topics
Wi-Fi (802.11), Mobile - Wireless Communications, VoIP - IP Telephony

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