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Conference Paper: Contention-based medium access control with physical layer assisted link differentiation

TitleContention-based medium access control with physical layer assisted link differentiation
Authors
Issue Date2007
Citation
Ieee International Conference On Communications, 2007, p. 4698-4703 How to Cite?
AbstractIn this paper, we develop contention-based medium access control (MAC) schemes for both best-effort data transmissions and delay-sensitive multimedia transmissions over WLANs. A user detection module and a multi-rate adaptation module are proposed in the physical layer to assist in link differentiation. With these two modules, for best-effort data transmissions, a new distributed queuing MAC protocol (PALD-DQMP) is proposed. Based on different users' channel states, PALD-DQMP makes use of a distributed queuing system to schedule the transmissions. To support delay-sensitive multimedia transmissions, an enhanced PALD-DQMP (E-PALD-DQMP) is designed by providing twolevel optimized transmission scheduling for four access categories, thus eliminating both external and internal collisions among mobile stations. Simulation results show that our proposed protocols outperform the standard MAC protocols for both delaysensitive and best-effort traffics. AU these improvements are mainly contributed by the availability of cross-layer channel state information, and the consequent multi-rate adaptation scheme. © 2007 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/99009
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorSun, Fen_HK
dc.contributor.authorLi, VOKen_HK
dc.contributor.authorDiao, Zen_HK
dc.contributor.authorXu, Zen_HK
dc.date.accessioned2010-09-25T18:12:04Z-
dc.date.available2010-09-25T18:12:04Z-
dc.date.issued2007en_HK
dc.identifier.citationIeee International Conference On Communications, 2007, p. 4698-4703en_HK
dc.identifier.issn0536-1486en_HK
dc.identifier.urihttp://hdl.handle.net/10722/99009-
dc.description.abstractIn this paper, we develop contention-based medium access control (MAC) schemes for both best-effort data transmissions and delay-sensitive multimedia transmissions over WLANs. A user detection module and a multi-rate adaptation module are proposed in the physical layer to assist in link differentiation. With these two modules, for best-effort data transmissions, a new distributed queuing MAC protocol (PALD-DQMP) is proposed. Based on different users' channel states, PALD-DQMP makes use of a distributed queuing system to schedule the transmissions. To support delay-sensitive multimedia transmissions, an enhanced PALD-DQMP (E-PALD-DQMP) is designed by providing twolevel optimized transmission scheduling for four access categories, thus eliminating both external and internal collisions among mobile stations. Simulation results show that our proposed protocols outperform the standard MAC protocols for both delaysensitive and best-effort traffics. AU these improvements are mainly contributed by the availability of cross-layer channel state information, and the consequent multi-rate adaptation scheme. © 2007 IEEE.en_HK
dc.languageengen_HK
dc.relation.ispartofIEEE International Conference on Communicationsen_HK
dc.titleContention-based medium access control with physical layer assisted link differentiationen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLi, VOK:vli@eee.hku.hken_HK
dc.identifier.authorityLi, VOK=rp00150en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/ICC.2007.776en_HK
dc.identifier.scopuseid_2-s2.0-38549162238en_HK
dc.identifier.hkuros134239en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38549162238&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage4698en_HK
dc.identifier.epage4703en_HK
dc.identifier.scopusauthoridSun, F=8267663500en_HK
dc.identifier.scopusauthoridLi, VOK=7202621685en_HK
dc.identifier.scopusauthoridDiao, Z=8415199800en_HK
dc.identifier.scopusauthoridXu, Z=7405429207en_HK

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