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VoIP - IP Telephony White Papers

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.

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

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