Scheduler design for multiple traffic classes in OFDMA networks
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Won-Hyoung | - |
dc.contributor.author | Cho, Sunghyun | - |
dc.contributor.author | Bahk, Saewoong | - |
dc.date.accessioned | 2021-06-23T18:04:00Z | - |
dc.date.available | 2021-06-23T18:04:00Z | - |
dc.date.created | 2021-02-01 | - |
dc.date.issued | 2008-01 | - |
dc.identifier.issn | 0140-3664 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/42696 | - |
dc.description.abstract | This paper considers some scheduler structures that are executable in the environments of multiple traffic classes and multiple frequency channels. To design a scheduler structure for multiple traffic classes, we first propose a scheduler selection rule that uses the priority of traffic class and the urgency level of each packet. Then we relax the barrier of traffic class priority when a high priority packet has some room in waiting time. This gives us a chance to exploit multiuser diversity, thereby giving more flexibility in scheduling. Our considered scheduler can achieve higher throughput compared to the simple extension of conventional modified largest weighted delay first (MLWDF) scheduler while maintaining the delay performance for QoS class traffic. We also design a scheduler structure for multiple frequency channels that chooses a good channel for each user whenever possible to exploit frequency diversity. The simulation results show that our proposed scheduler increases the total system throughput by up to 50% without degrading the delay performance. Our schedulers are suited to be deployed for OFDMA systems like IEEE 802.16 systems that have plenty of frequency channels and use the adaptive modulation and coding (AMC) scheme. | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Scheduler design for multiple traffic classes in OFDMA networks | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Cho, Sunghyun | - |
dc.identifier.doi | 10.1016/j.comcom.2007.10.041 | - |
dc.identifier.scopusid | 2-s2.0-37049029442 | - |
dc.identifier.wosid | 000253139300016 | - |
dc.identifier.bibliographicCitation | COMPUTER COMMUNICATIONS, v.31, no.1, pp.174 - 184 | - |
dc.relation.isPartOf | COMPUTER COMMUNICATIONS | - |
dc.citation.title | COMPUTER COMMUNICATIONS | - |
dc.citation.volume | 31 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 174 | - |
dc.citation.endPage | 184 | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Scheduler | - |
dc.subject.keywordAuthor | QoS | - |
dc.subject.keywordAuthor | IEEE 802.16 | - |
dc.subject.keywordAuthor | WiMAX | - |
dc.subject.keywordAuthor | WiBro | - |
dc.subject.keywordAuthor | OFDMA | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0140366407004604?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.