Considerations for VoIP Services in IEEE 802.16 Broadband Wireless Access Systems

Author

Hong, Seung-Eun ; Kwon, Oh-Hyeong

Author_Institution

Broadcasting Syst. Res. Group, Electron. & Telecommun. Res. Inst., Daejeon

Volume

3

fYear

2006

fDate

7-10 May 2006

Firstpage

1226

Lastpage

1230

Abstract

IEEE 802.16 defines the air interface standard for fixed/mobile broadband wireless access (BWA) metropolitan area networks (MANs), which is expected to support quality of service (QoS) for real time application such as voice over IP (VoIP). However, three major technical problems that stand in the way are: 1) absence of MAC scheduling for supporting codecs with voice activity detector (VAD); 2) absence of mapping procedure between IEEE 802.16 service flow and network flow; 3) absence of efficient admission control for VoIP. This paper proposes two schemes, statistical UGS and UGS-rtPS combined scheduling, of MAC scheduling, addresses mapping RSVP FlowSpecs parameter into IEEE 802.16 QoS parameter, and devises simple admission control algorithm for VoIP services

Keywords

Internet telephony; WiMax; access protocols; broadband networks; quality of service; radio access networks; scheduling; telecommunication congestion control; IEEE 802.16; MAC scheduling; QoS; RSVP FlowSpecs parameter; VoIP services; admission control algorithm; air interface standard; broadband wireless access systems; codecs; metropolitan area networks; quality of service; voice activity detector; voice over IP; Access protocols; Admission control; Codecs; Detectors; Internet telephony; Media Access Protocol; Metropolitan area networks; Physical layer; Quality of service; Scheduling algorithm; IEEE 802.16; QoS parameter mapping; VoIP; admission control; component; scheduling; voice activity detector;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683030

Filename

1683030