Adaptive radio spectrum allocation through mid-term reconfigurations for cellular communications systems

Tzifa, EC; Demestichas, PP; Louta, MD; Tsouka, ES; Theologou, ME; Anagnostou, ME

dc.contributor.author	Tzifa, EC	en
dc.contributor.author	Demestichas, PP	en
dc.contributor.author	Louta, MD	en
dc.contributor.author	Tsouka, ES	en
dc.contributor.author	Theologou, ME	en
dc.contributor.author	Anagnostou, ME	en
dc.date.accessioned	2014-03-01T01:14:22Z
dc.date.available	2014-03-01T01:14:22Z
dc.date.issued	1999	en
dc.identifier.issn	0140-3664	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13027
dc.subject	GSM	en
dc.subject	UMTS	en
dc.subject	frequency allocation	en
dc.subject	0-1 quadratic programming	en
dc.subject	weighted matching	en
dc.subject	DCA	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Algorithms	en
dc.subject.other	Cellular radio systems	en
dc.subject.other	Channel capacity	en
dc.subject.other	Mobile telecommunication systems	en
dc.subject.other	Quadratic programming	en
dc.subject.other	Radio interference	en
dc.subject.other	Telecommunication traffic	en
dc.subject.other	Dynamic channel allocation	en
dc.subject.other	Global system for mobile communications	en
dc.subject.other	Universal mobile telecommunications systems	en
dc.subject.other	Weighted matching	en
dc.subject.other	Frequency allocation	en
dc.title	Adaptive radio spectrum allocation through mid-term reconfigurations for cellular communications systems	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0140-3664(98)00252-7	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0140-3664(98)00252-7	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	A fundamental problem in cellular communications systems is the adaptation of the frequency allocation to the traffic fluctuations. Traffic adaptation may be achieved by a computationally efficient solution to the following problem: "Given the radio spectrum available, the cell structure, the current traffic conditions, and an already established allocation of frequencies to cells, find a new optimal allocation that is more suitable for handling the current traffic conditions, taking into account the previous allocation and subject to the restrictions arising from the interference conditions". In this article, this problem is formally defined, optimally formulated and solved in a computationally efficient manner. The results provided demonstrate a significant increase in the efficiency with which the available spectrum is utilised, using as a basis for comparison legacy frequency allocation schemes. (C) 1999 Elsevier Science B.V. All rights reserved.	en
heal.publisher	Elsevier Science B.V., Amsterdam, Netherlands	en
heal.journalName	Computer Communications	en
dc.identifier.doi	10.1016/S0140-3664(98)00252-7	en
dc.identifier.isi	ISI:000079543700005	en
dc.identifier.volume	22	en
dc.identifier.issue	4	en
dc.identifier.spage	361	en
dc.identifier.epage	375	en