HoWiES: A holistic approach to ZigBee assisted WiFi energy savings in mobile devices

Author

Yifan Zhang ; Qun Li

Author_Institution

Dept. of Comput. Sci., Coll. of William & Mary, Williamsburg, USA

fYear

2013

fDate

14-19 April 2013

Firstpage

1366

Lastpage

1374

Abstract

We propose HoWiES, a system that saves energy consumed by WiFi interfaces in mobile devices with the assistance of ZigBee radios. The core component of HoWiES is a WiFiZigBee message delivery scheme that enables WiFi radios to convey different messages to ZigBee radios in mobile devices. Based on the WiFi-ZigBee message delivery scheme, we design three protocols that target at three WiFi energy saving opportunities in scanning, standby and wakeup respectively. We have implemented the HoWiES system with two mobile devices platforms and two AP platforms. Our real-world experimental evaluation shows that our system can convey thousands of different messages from WiFi radios to ZigBee radios with an accuracy over 98%, and our energy saving protocols, while maintaining the comparable wakeup delay to that of the standard 802.11 power save mode, save 88% and 85% of energy consumed in scanning state and standby state respectively.

Keywords

Zigbee; mobile radio; protocols; wireless LAN; AP platforms; HoWiES; WiFi energy saving opportunities; WiFi interfaces; WiFi radios; WiFi-ZigBee message delivery scheme; ZigBee assisted WiFi energy savings; ZigBee radios; energy consumption saving; energy saving protocols; mobile devices platforms; scanning opportunity; standard 802.11 power save mode; standby opportunity; wakeup opportunity; Decoding; IEEE 802.11 Standards; Power demand; Protocols; Smart phones; Zigbee;

fLanguage

English

Publisher

ieee

Conference_Titel

INFOCOM, 2013 Proceedings IEEE

Conference_Location

Turin

ISSN

0743-166X

Print_ISBN

978-1-4673-5944-3

Type

conf

DOI

10.1109/INFCOM.2013.6566930

Filename

6566930