Hybrid Power Saving Mechanism for VoIP Services with Silence Suppression in IEEE 802.16e Systems

Author

Choi, Hyun-Ho ; Lee, Jung-Ryun ; Cho, Dong-Ho

Author_Institution

Commun. & Networking Lab., Samsung Adv. Inst. of Technol.

Volume

11

Issue

5

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

455

Lastpage

457

Abstract

Current power saving mechanisms in the IEEE 802.16e standard are not designed to take into account silent periods in VoIP traffic. Therefore, we propose a hybrid power saving mechanism (HPSM) suitable for VoIP services with silence suppression, which basically follows the power saving class (PSC) II during talk-spurt periods, but uses the mechanism of PSC I during silent periods. The analysis and simulation results show that the proposed HPSM reduces energy consumption during silent periods while satisfying constraints on the packet drop probability imposed by VoIP services

Keywords

IEEE standards; Internet telephony; WiMax; radio access networks; telecommunication standards; telecommunication traffic; IEEE 802.16e standard; VoIP traffic; hybrid power saving mechanism; packet drop probability; silence suppression; voice over Internet protocol; Analytical models; Background noise; Bandwidth; Codecs; Electronic mail; Energy consumption; Helium; Performance evaluation; Sleep; Traffic control;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2007.070035

Filename

4202105