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A-GPS assisted Wi-Fi access point discovery on mobile devices for energy saving

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4 Author(s)
Feng Xia ; Sch. of Software, Dalian Univ. of Technol., Dalian, China ; Wei Zhang ; Fangwei Ding ; Ruonan Hao

Mobile devices have been shipped with multiple wireless network interfaces in order to meet their diverse communication and networking demands. In this paper, we propose an A-GPS assisted scheme that discovers the nearest Wi Fi network access points (APs) by using user's location information. This allows the user to switch to the Wi-Fi interface in an intelligent manner when she/he arrives at the nearest Wi-Fi network AP. Therefore, it avoids the long periods in idle state and greatly reduces the number of unnecessary Wi-Fi scans on the mobile device. The experimental results demonstrate that our scheme effectively saves energy for mobile devices integrated with Wi-Fi and cellular interfaces.

Published in:

Global Information Infrastructure Symposium - GIIS 2011

Date of Conference:

4-6 Aug. 2011