A Scheduling Algorithm Based on Channel State for VoIP Services in IEEE Std 802.16e System

Author

Zhang, Hongxia ; Chen, Hong ; Fu, Xiaomei ; Dai, Jufeng

Author_Institution

Sch. of Electr. Inf. & Eng., Tianjin Univ., Tianjin

Volume

3

fYear

2008

fDate

17-20 Feb. 2008

Firstpage

1521

Lastpage

1525

Abstract

The voice-over-Internet protocol (VoIP) has attracted a great deal of attention in the field of wireless mobile networks. In this paper, we propose an improved ertPS scheduling algorithm for VoIP services in IEEE Std 802.16e system. It can solve both the problems waste of uplink resources caused by the UGS algorithm as well as MAC overhead and access delay caused by the rtPS algorithm, it also identify whether the channel state is good or bad. Conclusions are drawn for an IEEE 802.16e wireless system working in point-to-multipoint (PMP) mode, with time division duplex (TDD). The target air interface is WirelessMAN-OFDM.

Keywords

Internet telephony; WiMax; time division multiplexing; IEEE Std 802.16e; WiMax; access delay; point-to-multipoint mode; voice-over-Internet protocol; wireless mobile networks; Detectors; Electronic mail; Internet telephony; Metropolitan area networks; OFDM; Portable media players; Real time systems; Scheduling algorithm; WiMAX; Wireless LAN; Channel State; IEEE Std 802.16e; Scheduling Algorithm; VoIP; WiMAX;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on

Conference_Location

Gangwon-Do

ISSN

1738-9445

Print_ISBN

978-89-5519-136-3

Type

conf

DOI

10.1109/ICACT.2008.4494068

Filename

4494068