Enhanced Power Saving Mechanism for Type I and Type II Power Saving Classes in IEEE 802.16e

Kyunghye LEE
Youngsong MUN

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
IEEE 802.16e,  WiMAX,  energy consumption,  power management,  sleep mode,  

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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.