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Article: On the synergy between adaptive physical layer and multiple-access control for integrated voice and data services in a cellular wireless network

TitleOn the synergy between adaptive physical layer and multiple-access control for integrated voice and data services in a cellular wireless network
Authors
KeywordsChannel-adaptive
Multiple access control
Packet scheduling
Synergy
Wireless media
Issue Date2002
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25
Citation
Ieee Transactions On Vehicular Technology, 2002, v. 51 n. 6, p. 1338-1351 How to Cite?
AbstractIn this paper, we propose a novel design to exploit the synergy between the multiple-access control (MAC) layer and the physical layer of a cellular wireless system with integrated voice and data services. As in a traditional design, the physical layer (channel encoder and modulator) is responsible for providing error protection for transmitting the packets over the hostile radio channel, while the MAC layer is responsible for allocating the precious bandwidth to the contending users for voice or data connections. However, a distinctive feature of our proposed design is that in the physical layer, a variable-rate adaptive channel encoder is employed to dynamically adjust the amount of forward error correction according to the time-varying wireless channel state such that the MAC layer, which is a reservation-based time-division multiple-access protocol, is able to make informed decisions as to bandwidth allocation. Specifically, based on the channel state information provided by the physical layer, the MAC protocol gives higher priority to users with better channel states. This novel synergistic mechanism between the two protocol layers can utilize the system bandwidth more effectively. The multiple-access performance of the proposed scheme is compared with two baseline systems. The first baseline system consists of the same reservation-based MAC protocol but with a traditional fixed-rate physical layer. The second system consists of the same reservation-based MAC protocol and the same channel adaptive physical layer, but without interaction between the two layers. All three protocols have a request queue, which stores the previous requests that survive the contention but are not allocated information slots. Our extensive simulation results demonstrate that significant performance gains are achieved through the exploitation of the synergy between the two protocol layers.
Persistent Identifierhttp://hdl.handle.net/10722/42936
ISSN
2015 Impact Factor: 2.243
2015 SCImago Journal Rankings: 1.203
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLau, VKNen_HK
dc.contributor.authorKwok, YKen_HK
dc.date.accessioned2007-03-23T04:35:03Z-
dc.date.available2007-03-23T04:35:03Z-
dc.date.issued2002en_HK
dc.identifier.citationIeee Transactions On Vehicular Technology, 2002, v. 51 n. 6, p. 1338-1351en_HK
dc.identifier.issn0018-9545en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42936-
dc.description.abstractIn this paper, we propose a novel design to exploit the synergy between the multiple-access control (MAC) layer and the physical layer of a cellular wireless system with integrated voice and data services. As in a traditional design, the physical layer (channel encoder and modulator) is responsible for providing error protection for transmitting the packets over the hostile radio channel, while the MAC layer is responsible for allocating the precious bandwidth to the contending users for voice or data connections. However, a distinctive feature of our proposed design is that in the physical layer, a variable-rate adaptive channel encoder is employed to dynamically adjust the amount of forward error correction according to the time-varying wireless channel state such that the MAC layer, which is a reservation-based time-division multiple-access protocol, is able to make informed decisions as to bandwidth allocation. Specifically, based on the channel state information provided by the physical layer, the MAC protocol gives higher priority to users with better channel states. This novel synergistic mechanism between the two protocol layers can utilize the system bandwidth more effectively. The multiple-access performance of the proposed scheme is compared with two baseline systems. The first baseline system consists of the same reservation-based MAC protocol but with a traditional fixed-rate physical layer. The second system consists of the same reservation-based MAC protocol and the same channel adaptive physical layer, but without interaction between the two layers. All three protocols have a request queue, which stores the previous requests that survive the contention but are not allocated information slots. Our extensive simulation results demonstrate that significant performance gains are achieved through the exploitation of the synergy between the two protocol layers.en_HK
dc.format.extent1507353 bytes-
dc.format.extent26112 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25en_HK
dc.relation.ispartofIEEE Transactions on Vehicular Technologyen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2002 IEEE. 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 to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectChannel-adaptiveen_HK
dc.subjectMultiple access controlen_HK
dc.subjectPacket schedulingen_HK
dc.subjectSynergyen_HK
dc.subjectWireless mediaen_HK
dc.titleOn the synergy between adaptive physical layer and multiple-access control for integrated voice and data services in a cellular wireless networken_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9545&volume=51&issue=6&spage=1338&epage=1351&date=2002&atitle=On+the+synergy+between+adaptive+physical+layer+and+multiple-access+control+for+integrated+voice+and+data+services+in+a+cellular+wireless+networken_HK
dc.identifier.emailKwok, YK:ykwok@eee.hku.hken_HK
dc.identifier.authorityKwok, YK=rp00128en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TVT.2002.804848en_HK
dc.identifier.scopuseid_2-s2.0-0036879606en_HK
dc.identifier.hkuros82096-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036879606&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume51en_HK
dc.identifier.issue6en_HK
dc.identifier.spage1338en_HK
dc.identifier.epage1351en_HK
dc.identifier.isiWOS:000180733600008-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLau, VKN=7005811464en_HK
dc.identifier.scopusauthoridKwok, YK=7101857718en_HK

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