DocumentCode :
2276597
Title :
PAWP: a power aware Web proxy for wireless LAN clients
Author :
Rosu, Marcel C. ; Olsen, C. Michael ; Narayanaswami, Chandra ; Luo, Lu
Author_Institution :
IBM T.J. Watson Res. Center, Yorktown Heights, NY, USA
fYear :
2004
fDate :
2-3 Dec. 2004
Firstpage :
206
Lastpage :
215
Abstract :
The relative power consumed in the WLAN interface of a mobile device is rising due to significant improvements in the energy efficiency of the other device components. The unpredictability of the incoming WLAN traffic limit the effectiveness of existing power saving techniques. This paper introduces a power aware Web proxy (PAWP) architecture designed to schedule incoming Web traffic into intervals of high and no communication. This traffic pattern allows WLAN interfaces to switch to a low power state after very short idle intervals. PAWP uses a collection of HTTP-level techniques to compensate any negative impact that traffic scheduling may have. PAWP does not require any client or Web server modifications. In this paper, we describe our initial experiences with a PAWP implementation for 802.11b WLANs. Our experiments show savings of more than 50% in the energy consumed by the WLAN interface. Finally, our experiences give us insights into possible browser improvements when power consumption is taken into account.
Keywords :
Internet; client-server systems; mobile computing; power consumption; scheduling; standards; wireless LAN; 802.11b WLAN; HTTP-level technique; PAWP; WLAN interface; Web server; mobile device; power aware Web proxy; power saving technique; traffic scheduling; wireless LAN clients; Energy consumption; Energy efficiency; Mobile computing; Personal digital assistants; Service oriented architecture; Switches; Telecommunication traffic; Web server; Wireless LAN; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mobile Computing Systems and Applications, 2004. WMCSA 2004. Sixth IEEE Workshop on
ISSN :
1550-6193
Print_ISBN :
0-7695-2258-0
Type :
conf
DOI :
10.1109/MCSA.2004.18
Filename :
1377329
Link To Document :
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