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Enhanced Power Saving Mechanism for Type I and Type II Power Saving Classes in IEEE 802.16e
Kyunghye LEE Youngsong MUN
Publication
IEICE TRANSACTIONS on Communications
Vol.E94-B
No.9
pp.2642-2645 Publication Date: 2011/09/01 Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.2642 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Network Keyword: IEEE 802.16e, WiMAX, energy consumption, power management, sleep mode,
Full Text: PDF(341.9KB)>>
Summary:
A mobile station (MS) in an IEEE 802.16e network manages its limited energy using the sleep mode operation. An MS can power down its physical operation components during the unavailability interval of the sleep mode. To reduce energy consumption by increasing the unavailability interval, this paper proposes an enhanced power saving mechanism (ePSM) when both activated Type I and Type II power saving classes (PSCs) exist in an MS. A performance evaluation confirms that ePSM results in the improved performance in terms of the unavailability interval as well as the energy consumption than conventional schemes.
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