Study of power saving scheme suitable for wireless LAN in multimedia communication

Authors:
Takefumi Hiraguri;Masakatsu Ogawa;Makoto Umeuchi;Tetsu Sakata
Affiliations:
NTT Access Network Service Systems Laboratories, NTT Corporation, Kanagawa, Japan;NTT Access Network Service Systems Laboratories, NTT Corporation, Kanagawa, Japan;NTT Access Network Service Systems Laboratories, NTT Corporation, Kanagawa, Japan;NTT Access Network Service Systems Laboratories, NTT Corporation, Kanagawa, Japan
Venue:
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Year:
2009

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Adaptive Power Management for Mobile Agent-Based Information Retrieval

AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1

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Abstract

Wireless LAN access is now being offered by small personal terminals in addition to laptops. Since these terminals have very limited battery capacity, wireless LAN interfaces that offer some form of power saving are essential. IEEE802.11. specifies PSM (Power save management); it reduces power consumption by suspending some communications functions. However, since Multicasting and Broadcasting are invariably received by all terminals regardless of PSM, the terminals unnecessarily consume electric power even if the terminal is not engaged in multicasting. This paper clarifies this problem, and proposes a scheme for reducing power consumption and the results of an experiment confirm its excellent performance.