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Article: On integrating multiple access control and adaptive channel coding for cellular wireless voice and data services

TitleOn integrating multiple access control and adaptive channel coding for cellular wireless voice and data services
Authors
KeywordsAdaptive channel coding
Cellular wireless voice
Multiple access control
Issue Date2001
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/comcom
Citation
Computer Communications, 2001, v. 24 n. 10, p. 903-916 How to Cite?
AbstractIn this paper, we introduce a novel technique 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 FEC according to the time-varying wireless channel state such that the MAC layer, which is a reservation-based TDMA 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 and the well known DRMA protocol. 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 four protocols are incorporated with 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. © 2001 Elsevier Science B.V.
Persistent Identifierhttp://hdl.handle.net/10722/73801
ISSN
2015 Impact Factor: 2.099
2015 SCImago Journal Rankings: 0.889
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLau, VKNen_HK
dc.contributor.authorKwok, YKen_HK
dc.date.accessioned2010-09-06T06:54:53Z-
dc.date.available2010-09-06T06:54:53Z-
dc.date.issued2001en_HK
dc.identifier.citationComputer Communications, 2001, v. 24 n. 10, p. 903-916en_HK
dc.identifier.issn0140-3664en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73801-
dc.description.abstractIn this paper, we introduce a novel technique 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 FEC according to the time-varying wireless channel state such that the MAC layer, which is a reservation-based TDMA 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 and the well known DRMA protocol. 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 four protocols are incorporated with 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. © 2001 Elsevier Science B.V.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/comcomen_HK
dc.relation.ispartofComputer Communicationsen_HK
dc.rightsComputer Communications. Copyright © Elsevier BV.en_HK
dc.subjectAdaptive channel codingen_HK
dc.subjectCellular wireless voiceen_HK
dc.subjectMultiple access controlen_HK
dc.titleOn integrating multiple access control and adaptive channel coding for cellular wireless voice and data servicesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0140-3664&volume=24&issue=10&spage=903&epage=916&date=2001&atitle=On+Integrating+Multiple+Access+Control+and+Adaptive+Channel+Coding+for+Cellular+Wireless+Voice+and+Data+Servicesen_HK
dc.identifier.emailKwok, YK:ykwok@eee.hku.hken_HK
dc.identifier.authorityKwok, YK=rp00128en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0140-3664(00)00263-2en_HK
dc.identifier.scopuseid_2-s2.0-0035873053en_HK
dc.identifier.hkuros60801en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035873053&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue10en_HK
dc.identifier.spage903en_HK
dc.identifier.epage916en_HK
dc.identifier.isiWOS:000169056100001-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLau, VKN=7005811464en_HK
dc.identifier.scopusauthoridKwok, YK=7101857718en_HK

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