@inproceedings{bd7bcdfd83024954a946ce9e401e69f4,
title = "Reducing idle mode power consumption of cellular/VoWLAN dual mode mobiles",
abstract = "The integration of cellular and voice over WLAN (VoWLAN) systems recently has attracted considerable interest from both academia and industry. A cellular/VoWLAN dual mode system helps mobile users to access a low cost voice over IP (VoIP) service in a WLAN area and switch to a wide-coverage cellular system without WLANs. However, the system suffers the power consumption problem and the service continuity issue between cellular and WLAN systems. This study presents a network architecture for an enterprise or a dual mode service provider to permit service continuity between cellular and VoWLAN systems. This architecture is used as a basis for further elaborating a novel power saving mechanism, called PIANO (paging via another radio). By applying the proposed mechanisms to a dual mode mobile, the mobile can completely switch off its WLAN interface, only leaving the cellular interface awake to listen to paging signals. When a dual mode mobile receives a paging message from its cellular interface, it wakes up its WLAN interface and responds to the call via WLAN networks. Therefore, a dual mode mobile can reduce the idle mode power consumption, and can also obtain VoWLAN services. The simulation results illustrate that the proposed methods significantly extend the standby hours of a dual mode mobile.",
keywords = "Cellular-WLAN interworking, Dual mode mobile, Power saving, Voice over WLAN",
author = "Shiao-Li Tsao and Cheng, {E. Cheng}",
year = "2005",
month = dec,
day = "1",
doi = "10.1109/GLOCOM.2005.1578289",
language = "English",
isbn = "0780394143",
series = "GLOBECOM - IEEE Global Telecommunications Conference",
pages = "2902--2906",
booktitle = "GLOBECOM'05",
note = "null ; Conference date: 28-11-2005 Through 02-12-2005",
}