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IEICE TRANSACTIONS on Fundamentals

Power Saving Scheme Suitable for Wireless LAN in Multimedia Communications

Takefumi HIRAGURI, Masakatsu OGAWA, Makoto UMEUCHI, Tetsu SAKATA

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Summary :

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 multicast subscriber. This paper clarifies this problem, and proposes a scheme for reducing power consumption. The results of an experiment confirm its excellent performance.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.9 pp.2184-2190
Publication Date
2009/09/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E92.A.2184
Type of Manuscript
Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category
Wireless LAN System

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