Multiple QoS support using M-LWDF in OFDMA adaptive resource allocation

Author

Kim, Kanghee ; Koo, Insoo ; Sung, Seokjin ; Kim, Kiseon

Author_Institution

Dept. of Inf. & Commun., K-JIST, Gwangju, South Korea

fYear

2004

fDate

25-28 April 2004

Firstpage

217

Lastpage

222

Abstract

In this paper, we consider multiple quality of service (QoS) support by using modified largest weighted delay first (M-LWDF) discipline in the adaptive resource allocation of the orthogonal frequency division multiplexing (OFDM) multiple access (OFDMA) systems. We propose a M-LWDF (M Andrews et al., Feb. 2001) based on subchannel assignment, which can satisfy different QoS requirements of services including delay-sensitive and data rate-sensitive traffics in OFDMA systems. The simulation shows that the proposed M-LWDF based subchannel assignment provides controlled QoS provisions while maintaining both the stability of scheduling discipline and the flexibility of the multiple QoS support.

Keywords

Internet; OFDM modulation; channel allocation; frequency division multiple access; quality of service; radio networks; resource allocation; stability; telecommunication control; telecommunication traffic; OFDMA systems; QoS support; adaptive resource allocation; data rate-sensitive traffic; delay-sensitive traffic; modified largest weighted delay first; orthogonal frequency division multiplexing multiple access; quality of service; stability; subchannel assignment; Base stations; Communication system control; Delay; Downlink; Fading; OFDM; Quality of service; Resource management; Web and internet services; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Local and Metropolitan Area Networks, 2004. LANMAN 2004. The 13th IEEE Workshop on

Print_ISBN

0-7803-8551-9

Type

conf

DOI

10.1109/LANMAN.2004.1338435

Filename

1338435