Delay and rate based multichannel scheduling for heterogeneous traffic

Author

Heidary, Roshanak ; Mehrjoo, Mehri

Author_Institution

Electr. Eng. Dept., Sci. & Res. Univ., Tehran, Iran

fYear

2011

fDate

23-24 Feb. 2011

Firstpage

187

Lastpage

192

Abstract

A multichannel scheduling based on an extension of modified largest weighted delay first (M-LWDF) scheduling is proposed for heterogeneous traffic. We consider the downlink of an orthogonal frequency division multiplexing (OFDM) system where the wireless channel and queue state information are taken into account to schedule delay-sensitive and ratesensitive traffic. We propose a logarithmic notion of M-LWDF scheme, denoted LOG-M-LWDF, and we prove its stability analytically. The simulation results show that the proposed scheduling scheme outperforms M-LWDF in terms of service delay performance.

Keywords

OFDM modulation; queueing theory; scheduling; telecommunication traffic; wireless channels; OFDM system; delay-sensitive traffic; heterogeneous traffic; modified largest weighted delay first scheduling; multichannel scheduling; orthogonal frequency division multiplexing; queue state information; rate sensitive traffic; wireless channel; Delay; OFDM; Quality of service; Resource management; Throughput; Wireless communication; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Networks and Distributed Systems (CNDS), 2011 International Symposium on

Conference_Location

Tehran

Print_ISBN

978-1-4244-9153-7

Type

conf

DOI

10.1109/CNDS.2011.5764570

Filename

5764570