A network-centric approach for access and interface selection in heterogeneous wireless environments

Koundourakis, G; Axiotis, DI; Argyropoulos, M; Theologou, M

dc.contributor.author	Koundourakis, G	en
dc.contributor.author	Axiotis, DI	en
dc.contributor.author	Argyropoulos, M	en
dc.contributor.author	Theologou, M	en
dc.date.accessioned	2014-03-01T01:27:43Z
dc.date.available	2014-03-01T01:27:43Z
dc.date.issued	2008	en
dc.identifier.issn	1074-5351	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18558
dc.subject	Access and interface selection algorithm	en
dc.subject	Heterogeneous networks	en
dc.subject	Multihoming	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Access control	en
dc.subject.other	Algorithms	en
dc.subject.other	Computer simulation	en
dc.subject.other	Internet protocols	en
dc.subject.other	Optimization	en
dc.subject.other	Quality of service	en
dc.subject.other	Access and interface selection algorithm	en
dc.subject.other	Heterogeneous networks	en
dc.subject.other	Multihoming	en
dc.subject.other	Network entities	en
dc.subject.other	Wireless networks	en
dc.title	A network-centric approach for access and interface selection in heterogeneous wireless environments	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/dac.903	en
heal.identifier.secondary	http://dx.doi.org/10.1002/dac.903	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	In this paper, we introduce a network-based approach for access and interface selection (AIS) in the context of resource management in heterogeneous wireless environments (UNITS, WLAN and DVB-T). We focus on the optimization of resource utilization, while ensuring acceptable quality of service (QoS) provision to the end users. Our objective is to optimally manage the overall system resources and minimize the possibility of QoS handovers (non-mobility handovers). The adopted architecture applies to typical heterogeneous environments and network entities (Access Routers) are enhanced with extra functionalities. We propose an AIS algorithm that exploits the multihoming concept and globally manages network resources at both radio access and IP backbone networks. The algorithm can estimate near-optimal solutions in real time and we also introduce a novel triggering policy. We present simulation results of typical scenarios that demonstrate the advantages of our approach. System performance metrics, derived from the simulations, show minimum degradations in high load and congestion situations. Copyright (C) 2007 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	International Journal of Communication Systems	en
dc.identifier.doi	10.1002/dac.903	en
dc.identifier.isi	ISI:000256005400002	en
dc.identifier.volume	21	en
dc.identifier.issue	5	en
dc.identifier.spage	469	en
dc.identifier.epage	488	en