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Article: Practical channel state aware and cooperative packet scheduling disciplines for coordinating colocated Bluetooth and IEEE 802.11b devices

TitlePractical channel state aware and cooperative packet scheduling disciplines for coordinating colocated Bluetooth and IEEE 802.11b devices
Authors
KeywordsBluetooth
Coexistence
Dual-Mode Wireless Access
Ieee 802.11B
Linux
Network Access Point (Nap)
Queueing Disciplines
Scheduling
Wireless Routers
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/comcom
Citation
Computer Communications, 2007, v. 30 n. 7, p. 1569-1587 How to Cite?
Abstract
Attempts to satisfy the demand for ubiquitous communications have resulted in a proliferation of hand-held short range communication devices based on the ISM (Industrial, Scientific, Medical) band technologies, most notably Bluetooth and IEEE 802.11b. However, coexistence between Bluetooth and IEEE 802.11b has become a critical issue that could severely hinder the performance achieved by user devices. In this study we performed a detailed implementation of a Linux based network access point (NAP), in which Bluetooth and IEEE 802.11b interfaces are colocated. Such an NAP is crucial in supporting "hot-spot" systems targeted to serve nomadic users carrying either a Bluetooth or an IEEE 802.11b device. Specifically, the goal of our study is to investigate the efficacy of a software-based interference coordination approach, through a detailed actual implementation so as to identify system issues which are difficult to obtained by simulations. We considered a wide range of common scheduling algorithms as the possible solutions in a Linux environment to estimate the interference effects as viewed from the network layer perspective. Upon our investigation, two wireless scheduling algorithms based on Channel State Independent Fair Queueing (CIFQ) were implemented in Linux to test their empirical performance under this NAP application. Finally, guided by our practical findings, we proposed and implemented two new packet scheduling algorithms in Linux to provide the best trade-offs to colocated Bluetooth and IEEE 802.11b traffics, as well as QoS support for different applications. Our results show that dynamic priorities and cooperative transmissions between Bluetooth and IEEE 802.11b traffic can effectively protect both interfaces from interference. We also compared our proposed scheme with two MAC layer approaches. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/155363
ISSN
2013 Impact Factor: 1.352
2013 SCImago Journal Rankings: 0.645
ISI Accession Number ID
References

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorYip, HKen_US
dc.contributor.authorKwok, YKen_US
dc.date.accessioned2012-08-08T08:33:04Z-
dc.date.available2012-08-08T08:33:04Z-
dc.date.issued2007en_US
dc.identifier.citationComputer Communications, 2007, v. 30 n. 7, p. 1569-1587en_US
dc.identifier.issn0140-3664en_US
dc.identifier.urihttp://hdl.handle.net/10722/155363-
dc.description.abstractAttempts to satisfy the demand for ubiquitous communications have resulted in a proliferation of hand-held short range communication devices based on the ISM (Industrial, Scientific, Medical) band technologies, most notably Bluetooth and IEEE 802.11b. However, coexistence between Bluetooth and IEEE 802.11b has become a critical issue that could severely hinder the performance achieved by user devices. In this study we performed a detailed implementation of a Linux based network access point (NAP), in which Bluetooth and IEEE 802.11b interfaces are colocated. Such an NAP is crucial in supporting "hot-spot" systems targeted to serve nomadic users carrying either a Bluetooth or an IEEE 802.11b device. Specifically, the goal of our study is to investigate the efficacy of a software-based interference coordination approach, through a detailed actual implementation so as to identify system issues which are difficult to obtained by simulations. We considered a wide range of common scheduling algorithms as the possible solutions in a Linux environment to estimate the interference effects as viewed from the network layer perspective. Upon our investigation, two wireless scheduling algorithms based on Channel State Independent Fair Queueing (CIFQ) were implemented in Linux to test their empirical performance under this NAP application. Finally, guided by our practical findings, we proposed and implemented two new packet scheduling algorithms in Linux to provide the best trade-offs to colocated Bluetooth and IEEE 802.11b traffics, as well as QoS support for different applications. Our results show that dynamic priorities and cooperative transmissions between Bluetooth and IEEE 802.11b traffic can effectively protect both interfaces from interference. We also compared our proposed scheme with two MAC layer approaches. © 2007 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/comcomen_US
dc.relation.ispartofComputer Communicationsen_US
dc.rightsComputer Communications. Copyright © Elsevier BV.-
dc.subjectBluetoothen_US
dc.subjectCoexistenceen_US
dc.subjectDual-Mode Wireless Accessen_US
dc.subjectIeee 802.11Ben_US
dc.subjectLinuxen_US
dc.subjectNetwork Access Point (Nap)en_US
dc.subjectQueueing Disciplinesen_US
dc.subjectSchedulingen_US
dc.subjectWireless Routersen_US
dc.titlePractical channel state aware and cooperative packet scheduling disciplines for coordinating colocated Bluetooth and IEEE 802.11b devicesen_US
dc.typeArticleen_US
dc.identifier.emailKwok, YK:ykwok@eee.hku.hken_US
dc.identifier.authorityKwok, YK=rp00128en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.comcom.2007.01.010en_US
dc.identifier.scopuseid_2-s2.0-34047177435en_US
dc.identifier.hkuros131041-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34047177435&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume30en_US
dc.identifier.issue7en_US
dc.identifier.spage1569en_US
dc.identifier.epage1587en_US
dc.identifier.isiWOS:000246334800013-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridYip, HK=36605687200en_US
dc.identifier.scopusauthoridKwok, YK=7101857718en_US

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