Enhanced power saving through increasing unavailability interval in the IEEE 802.16e systems

Author

Kwon, Sang-Wook ; Cho, Dong-Ho

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

Volume

14

Issue

1

fYear

2010

fDate

1/1/2010 12:00:00 AM

Firstpage

24

Lastpage

26

Abstract

The power saving mechanisms of the current IEEE 802.16e system are designed to take no consideration of the harmonization between power saving classes (PSCs) I and II. Using the IEEE 802.16e standard as a basis, we propose a dynamic power saving mechanism that increases unavailability interval when a mobile station (MS) uses PSCs. The proposed mechanism adjusts the timing of the sleep window of PSC I to maximize the unavailability interval of the MSs. As a result, the proposed scheme achieves power saving of the MSs. Through numerical analysis and simulations, we show that the proposed mechanism can reduce the power consumption of the MSs considerably compared with conventional mechanisms.

Keywords

WiMax; IEEE 802.16e systems; mobile station; power consumption; power saving mechanisms; unavailability interval; Analytical models; Computer science; Delay; Energy consumption; Helium; Numerical analysis; Numerical simulation; Quality of service; Sleep; Timing; IEEE 802.16e; MAC; power saving; sleep mode; wireless MAN;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.01.091086

Filename

5370262