VoIP over Wi-Fi is becoming increasingly popular. However, the high energy costs of Wi-Fi present a significant barrier to the widespread adoption of VoIP over Wi-Fi. Cell2Notify is a practical and deployable energy management architecture that addresses this issue by leveraging the cellular radio on a smartphone to implement wakeups for the high-energy consumption Wi-Fi radio. More generally, Cell2Notify provides a mechanism to send notifications to phones using an incoming call's caller ID.
- Yuvraj Agarwal, Ranveer Chandra, Alec Wolman, Paramvir Bahl, Kevin Chin, and Rajesh Gupta, Wireless Wakeups Revisited: Energy Management for VoIP Over Wi-Fi Smartphones, in ACM/USENIX Mobile Systems, Applications, and Services (MobiSys), Association for Computing Machinery, Inc., June 2007