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Conference Paper: A novel channel-adaptive uplink access control protocol for nomadic computing

TitleA novel channel-adaptive uplink access control protocol for nomadic computing
Authors
KeywordsMobile computing
Distributed data access
Wireless systems
Adaptive protocols
Error control
Issue Date2000
PublisherIEEE.
Citation
The 2000 International Conference on Parallel Processing, Toronto, ON., Canada, 21-24 August 2000. In International Conference on Parallel Processing Proceedings, 2000, p. 565-572 How to Cite?
AbstractWe consider the uplink access control problem in a mobile computing system, which is based on a cellular phone network in that a user can use the mobile device to transmit voice or file data. This resource management problem is important because efficient solution to uplink access control is critical for supporting a large user population with a reasonable level of quality of service (QoS). While there are a number of recently proposed protocols for uplink access control, these protocols possess a common drawback in that they do not exploit well the burst error properties, which are inevitable in a wireless communication system. In this paper, we propose a novel TDMA-based uplink access protocol, which employs a channel state dependent allocation strategy. Our protocol is motivated by two observations: (1) when channel state is bad, the throughput is low due to large amount of FEC (forward error correction) or excessive ARQ (automatic repeated request) is needed; and (2) because of (1), much of the mobile device's energy is wasted. The proposed protocol works closely with the underlying physical layer in that through observing the channel state information (CSI) of each mobile user, the MAC protocol first segregates a set of users with good CSI from requests gathered in the request contention phase of an uplink frame. The protocol then judiciously allocates channel bandwidth to contending users based on their channel conditions. Simulation results indicate that the proposed protocol considerably outperforms five state-of-the-art protocols in terms of packet loss, delay, and throughput.
Persistent Identifierhttp://hdl.handle.net/10722/46273
ISSN

 

DC FieldValueLanguage
dc.contributor.authorKwok, YKen_HK
dc.contributor.authorLau, VKNen_HK
dc.date.accessioned2007-10-30T06:46:15Z-
dc.date.available2007-10-30T06:46:15Z-
dc.date.issued2000en_HK
dc.identifier.citationThe 2000 International Conference on Parallel Processing, Toronto, ON., Canada, 21-24 August 2000. In International Conference on Parallel Processing Proceedings, 2000, p. 565-572en_HK
dc.identifier.issn0190-3918en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46273-
dc.description.abstractWe consider the uplink access control problem in a mobile computing system, which is based on a cellular phone network in that a user can use the mobile device to transmit voice or file data. This resource management problem is important because efficient solution to uplink access control is critical for supporting a large user population with a reasonable level of quality of service (QoS). While there are a number of recently proposed protocols for uplink access control, these protocols possess a common drawback in that they do not exploit well the burst error properties, which are inevitable in a wireless communication system. In this paper, we propose a novel TDMA-based uplink access protocol, which employs a channel state dependent allocation strategy. Our protocol is motivated by two observations: (1) when channel state is bad, the throughput is low due to large amount of FEC (forward error correction) or excessive ARQ (automatic repeated request) is needed; and (2) because of (1), much of the mobile device's energy is wasted. The proposed protocol works closely with the underlying physical layer in that through observing the channel state information (CSI) of each mobile user, the MAC protocol first segregates a set of users with good CSI from requests gathered in the request contention phase of an uplink frame. The protocol then judiciously allocates channel bandwidth to contending users based on their channel conditions. Simulation results indicate that the proposed protocol considerably outperforms five state-of-the-art protocols in terms of packet loss, delay, and throughput.en_HK
dc.format.extent838498 bytes-
dc.format.extent3461 bytes-
dc.format.extent4989 bytes-
dc.format.extent10776 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofInternational Conference on Parallel Processing Proceedings-
dc.rights©2000 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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectMobile computingen_HK
dc.subjectDistributed data accessen_HK
dc.subjectWireless systemsen_HK
dc.subjectAdaptive protocolsen_HK
dc.subjectError controlen_HK
dc.titleA novel channel-adaptive uplink access control protocol for nomadic computingen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0190-3918&volume=&spage=565&epage=572&date=2000&atitle=A+novel+channel-adaptive+uplink+access+control+protocol+for+nomadic+computingen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/ICPP.2000.876174en_HK
dc.identifier.hkuros61359-

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