Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks

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dc.contributor.authorFalowo, Olabisien_ZA
dc.contributor.authorChan, H Anthonyen_ZA
dc.date.accessioned2015-11-18T03:45:28Z
dc.date.available2015-11-18T03:45:28Z
dc.date.issued2012en_ZA
dc.description.abstractThere is an increasing demand for high bandwidth-consuming services such as real-time video and video streaming over wireless access networks. A single radio access technology (RAT) in a heterogeneous wireless network may not always have enough radio resource to admit high bandwidth-consuming calls, such as video calls. Existing joint call admission control (JCAC) algorithms designed for heterogeneous wireless networks block/drop an incoming call when none of the available individual RATs in the network has enough bandwidth to admit the incoming call. Consequently, video calls experience high call blocking/dropping probability in the network. However, some calls such as multi-layer coded (scalable) video can be transmitted/received over one or multiple RATs. This article proposes a JCAC algorithm that selects a single or multiple RATs for scalable video calls in heterogeneous wireless networks, depending on availability of radio resources in available RATs. Non scalable calls are always admitted into a single RAT by the algorithm. The aim of the proposed algorithm is to reduce call blocking/dropping probability for both scalable and non-scalable calls. An analytical model is developed for the proposed JCAC algorithm, and its performance is evaluated. Simulation results show that the proposed algorithm reduces call blocking/dropping probability in heterogeneous wireless networks.en_ZA
dc.identifier.apacitationFalowo, O., & Chan, H. A. (2012). Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks. <i>EURASIP Journal on Wireless Communications and Networking</i>, http://hdl.handle.net/11427/15040en_ZA
dc.identifier.chicagocitationFalowo, Olabisi, and H Anthony Chan "Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks." <i>EURASIP Journal on Wireless Communications and Networking</i> (2012) http://hdl.handle.net/11427/15040en_ZA
dc.identifier.citationFalowo, O. E., & Chan, H. A. (2012). Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks. EURASIP Journal on Wireless Communications and Networking, 2012(1), 1-12.en_ZA
dc.identifier.ris TY - Journal Article AU - Falowo, Olabisi AU - Chan, H Anthony AB - There is an increasing demand for high bandwidth-consuming services such as real-time video and video streaming over wireless access networks. A single radio access technology (RAT) in a heterogeneous wireless network may not always have enough radio resource to admit high bandwidth-consuming calls, such as video calls. Existing joint call admission control (JCAC) algorithms designed for heterogeneous wireless networks block/drop an incoming call when none of the available individual RATs in the network has enough bandwidth to admit the incoming call. Consequently, video calls experience high call blocking/dropping probability in the network. However, some calls such as multi-layer coded (scalable) video can be transmitted/received over one or multiple RATs. This article proposes a JCAC algorithm that selects a single or multiple RATs for scalable video calls in heterogeneous wireless networks, depending on availability of radio resources in available RATs. Non scalable calls are always admitted into a single RAT by the algorithm. The aim of the proposed algorithm is to reduce call blocking/dropping probability for both scalable and non-scalable calls. An analytical model is developed for the proposed JCAC algorithm, and its performance is evaluated. Simulation results show that the proposed algorithm reduces call blocking/dropping probability in heterogeneous wireless networks. DA - 2012 DB - OpenUCT DO - 10.1186/1687-1499-2012-221 DP - University of Cape Town J1 - EURASIP Journal on Wireless Communications and Networking LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 T1 - Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks TI - Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks UR - http://hdl.handle.net/11427/15040 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/15040
dc.identifier.urihttp://dx.doi.org/10.1186/1687-1499-2012-221
dc.identifier.vancouvercitationFalowo O, Chan HA. Multiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networks. EURASIP Journal on Wireless Communications and Networking. 2012; http://hdl.handle.net/11427/15040.en_ZA
dc.language.isoengen_ZA
dc.publisherSpringeren_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution Licenseen_ZA
dc.rights.holder2012 Falowo and Chan; licensee Springeren_ZA
dc.rights.urihttp://creativecommons.org/licenses/by/2.0en_ZA
dc.sourceEURASIP Journal on Wireless Communications and Networkingen_ZA
dc.source.urihttp://www.jwcn.eurasipjournals.com/en_ZA
dc.subject.otherHeterogeneous wireless networken_ZA
dc.subject.otherJoint radio resource managementen_ZA
dc.subject.otherJoint call admission control, Radio access technologyen_ZA
dc.subject.otherMarkov chainen_ZA
dc.subject.otherMobile terminalen_ZA
dc.titleMultiple-RAT selection for reducing call blocking/dropping probability in cooperative heterogeneous wireless networksen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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