Performance evaluation of MIMO downlink WiMAX for different schedulers

R Dziyauddin; A Doufexi; D Kaleshi

doi:10.1109/WIAD.2010.5544946

Performance evaluation of MIMO downlink WiMAX for different schedulers

R Dziyauddin, A Doufexi, D Kaleshi

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

5 Citations (Scopus)

526 Downloads (Pure)

Abstract

WiMAX performance evaluation considering different scheduling techniques has received considerable attention by WiMAX researchers and also WiMAX operators. The standard does not define MAC scheduling although it affects the overall QoS performance of users as well as the achievable total cell goodput. The primary goal of this paper is to compare the performance of maximum total goodput including the average delay for UGS (Unsolicited Grant Service) users employing channel-aware and queue-aware downlink schedulers for a group of users. The paper initially considers the goodput behaviour and its peak across different modulation and coding schemes for SISO and MIMO (both Space Time Block Code (STBC) and Spatial Multiplexing (SM)) connections for a single user. The achievable maximum goodput is shown to be between 94.5% and 97.0% of the theoretical data rates. The analysis is then expanded to multiple users considering Proportional Fair (PF) with different observation window, tc, Greedy and also Weighted Fair Queuing (WFQ) schedulers to serve downlink QoS flows. The PF with a higher tc = 50K exceptionally outperforms WFQ as well as the PF with a smaller tc = 500 for a higher number of users and shows a greedy like performance. The channel-aware scheduler generally performs better than the queue-aware scheduler.

Translated title of the contribution	Performance evaluation of MIMO downlink WiMAX for different schedulers
Original language	English
Title of host publication	6th Conference on Wireless Advanced (WiAD) 2010, London, UK
Place of Publication	6th Conference on Wireless Advanced (WiAD), 2010
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1 - 6
Number of pages	6
ISBN (Print)	9781424470693
DOIs	https://doi.org/10.1109/WIAD.2010.5544946
Publication status	Published - Jun 2010
Event	6th Conference on Wireless Advanced - London, United Kingdom Duration: 1 Jun 2010 → …

Conference

Conference	6th Conference on Wireless Advanced
Abbreviated title	WiAD
Country/Territory	United Kingdom
City	London
Period	1/06/10 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The first author would like to thank Qualnet Support for their supportive forums and also to Zamri Napiah his comments. The first author is also grateful to the Ministry of
Higher Education (MoHE) of Malaysia and Universiti Teknologi Malaysia for her funding.

Terms of use: Copyright © 2010 IEEE. Reprinted from 6th Conference on Wireless Advanced (WiAD) 2010.

This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

goodput
WFQ
WiMAX
propotional Fair
greedy

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10.1109/WIAD.2010.5544946

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http://hdl.handle.net/1983/1674

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Cite this

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title = "Performance evaluation of MIMO downlink WiMAX for different schedulers",

abstract = "WiMAX performance evaluation considering different scheduling techniques has received considerable attention by WiMAX researchers and also WiMAX operators. The standard does not define MAC scheduling although it affects the overall QoS performance of users as well as the achievable total cell goodput. The primary goal of this paper is to compare the performance of maximum total goodput including the average delay for UGS (Unsolicited Grant Service) users employing channel-aware and queue-aware downlink schedulers for a group of users. The paper initially considers the goodput behaviour and its peak across different modulation and coding schemes for SISO and MIMO (both Space Time Block Code (STBC) and Spatial Multiplexing (SM)) connections for a single user. The achievable maximum goodput is shown to be between 94.5% and 97.0% of the theoretical data rates. The analysis is then expanded to multiple users considering Proportional Fair (PF) with different observation window, tc, Greedy and also Weighted Fair Queuing (WFQ) schedulers to serve downlink QoS flows. The PF with a higher tc = 50K exceptionally outperforms WFQ as well as the PF with a smaller tc = 500 for a higher number of users and shows a greedy like performance. The channel-aware scheduler generally performs better than the queue-aware scheduler.",

keywords = "goodput, WFQ, WiMAX, propotional Fair, greedy",

author = "R Dziyauddin and A Doufexi and D Kaleshi",

note = "Rose publication type: Conference contribution Sponsorship: The first author would like to thank Qualnet Support for their supportive forums and also to Zamri Napiah his comments. The first author is also grateful to the Ministry of Higher Education (MoHE) of Malaysia and Universiti Teknologi Malaysia for her funding. Terms of use: Copyright {\textcopyright} 2010 IEEE. Reprinted from 6th Conference on Wireless Advanced (WiAD) 2010. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ; 6th Conference on Wireless Advanced, WiAD ; Conference date: 01-06-2010",

year = "2010",

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Dziyauddin, R, Doufexi, A & Kaleshi, D 2010, Performance evaluation of MIMO downlink WiMAX for different schedulers. in 6th Conference on Wireless Advanced (WiAD) 2010, London, UK. Institute of Electrical and Electronics Engineers (IEEE), 6th Conference on Wireless Advanced (WiAD), 2010, pp. 1 - 6, 6th Conference on Wireless Advanced, London, United Kingdom, 1/06/10. https://doi.org/10.1109/WIAD.2010.5544946

Performance evaluation of MIMO downlink WiMAX for different schedulers. / Dziyauddin, R; Doufexi, A; Kaleshi, D.
6th Conference on Wireless Advanced (WiAD) 2010, London, UK. 6th Conference on Wireless Advanced (WiAD), 2010: Institute of Electrical and Electronics Engineers (IEEE), 2010. p. 1 - 6.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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AB - WiMAX performance evaluation considering different scheduling techniques has received considerable attention by WiMAX researchers and also WiMAX operators. The standard does not define MAC scheduling although it affects the overall QoS performance of users as well as the achievable total cell goodput. The primary goal of this paper is to compare the performance of maximum total goodput including the average delay for UGS (Unsolicited Grant Service) users employing channel-aware and queue-aware downlink schedulers for a group of users. The paper initially considers the goodput behaviour and its peak across different modulation and coding schemes for SISO and MIMO (both Space Time Block Code (STBC) and Spatial Multiplexing (SM)) connections for a single user. The achievable maximum goodput is shown to be between 94.5% and 97.0% of the theoretical data rates. The analysis is then expanded to multiple users considering Proportional Fair (PF) with different observation window, tc, Greedy and also Weighted Fair Queuing (WFQ) schedulers to serve downlink QoS flows. The PF with a higher tc = 50K exceptionally outperforms WFQ as well as the PF with a smaller tc = 500 for a higher number of users and shows a greedy like performance. The channel-aware scheduler generally performs better than the queue-aware scheduler.

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M3 - Conference Contribution (Conference Proceeding)

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PB - Institute of Electrical and Electronics Engineers (IEEE)

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T2 - 6th Conference on Wireless Advanced

Y2 - 1 June 2010

ER -

Performance evaluation of MIMO downlink WiMAX for different schedulers

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