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dc.contributor.authorTsao, Shiao-Lien_US
dc.contributor.authorHsu, Chih-Chienen_US
dc.date.accessioned2014-12-08T15:01:12Z-
dc.date.available2014-12-08T15:01:12Z-
dc.date.issued2008-01-01en_US
dc.identifier.issn1016-2364en_US
dc.identifier.urihttp://hdl.handle.net/11536/108-
dc.description.abstractCoverage areas of WLAN access points (APs) are usually overlapped so a WLAN station (STA) might be able to find several APs to attach in a WLAN hotspot. Experimental results indicate that a WLAN STA normally associates with an AP with the maximal signal strength and requests the bandwidth of the AP for establishing network connections. However, this kind of STA-centric association and bandwidth request policy may introduce unbalance loads of APs, and the bandwidths of APs in a WLAN hotspot cannot be fully utilized. This unbalance load problem is a critical issue for the commercial deployment of voice over IP (VOlP) over WLAN (VoWLAN) service which has to maximize the number of concurrent VoWLAN sessions with Quality of Service (QoS) guarantees. In this paper, a novel dynamic load balancing scheme is proposed for a VoWLAN system. The network-assisted association policy first advices an STA to request a VoWLAN session through an AP with the minimal load. In case of the AN which the STA can attach are all overloaded, the proposed load balancing scheme further rearranges the serving VoWLAN STAB between APs in order to spare enough resources for accommodating that new request. Simulation results demonstrate that the reject rate of service requests for a VoWLAN system can be considerably reduced by employing the proposed scheme.en_US
dc.language.isoen_USen_US
dc.subjectvoice over IP (VoIP)en_US
dc.subjectVoIP over WLAN (VoWLAN)en_US
dc.subjectradio resource managementen_US
dc.subjectload balancingen_US
dc.subjectWLANen_US
dc.titleDynamic load balancing scheme for VoIP over WLANsen_US
dc.typeArticle; Proceedings Paperen_US
dc.identifier.journalJOURNAL OF INFORMATION SCIENCE AND ENGINEERINGen_US
dc.citation.volume24en_US
dc.citation.issue1en_US
dc.citation.spage47en_US
dc.citation.epage60en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000253046500005-
Appears in Collections:Conferences Paper


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