Adaptive beam-centric admission control for WCDMA multicell/multiservice scenarios with non-uniform traffic

Gkonis, PK; Athanaileas, TE; Tsoulos, GV; Athanasiadou, GE; Kaklamani, DI

dc.contributor.author	Gkonis, PK	en
dc.contributor.author	Athanaileas, TE	en
dc.contributor.author	Tsoulos, GV	en
dc.contributor.author	Athanasiadou, GE	en
dc.contributor.author	Kaklamani, DI	en
dc.date.accessioned	2014-03-01T01:35:04Z
dc.date.available	2014-03-01T01:35:04Z
dc.date.issued	2011	en
dc.identifier.issn	0929-6212	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20958
dc.subject	Adaptive beams	en
dc.subject	Antenna arrays	en
dc.subject	Non-uniform traffic	en
dc.subject	Performance analysis	en
dc.subject	WCDMA	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Accurate performance	en
dc.subject.other	Adaptive beams	en
dc.subject.other	Angular width	en
dc.subject.other	Execution time	en
dc.subject.other	Extensive simulations	en
dc.subject.other	Fixed grids	en
dc.subject.other	Full scale	en
dc.subject.other	Hand over	en
dc.subject.other	Hotspots	en
dc.subject.other	Monte Carlo simulations	en
dc.subject.other	Multi rate	en
dc.subject.other	Multi-cell networks	en
dc.subject.other	Multicell	en
dc.subject.other	Multiple beam	en
dc.subject.other	Network planning	en
dc.subject.other	Non-uniform traffic distribution	en
dc.subject.other	Nonuniform traffic	en
dc.subject.other	Operational scenario	en
dc.subject.other	Performance analysis	en
dc.subject.other	Problem solving environments	en
dc.subject.other	Spatial characteristics	en
dc.subject.other	WCDMA	en
dc.subject.other	Wideband code division multiple access	en
dc.subject.other	Adaptive antenna arrays	en
dc.subject.other	Multibeam antennas	en
dc.subject.other	Throughput	en
dc.subject.other	Adaptive control systems	en
dc.title	Adaptive beam-centric admission control for WCDMA multicell/multiservice scenarios with non-uniform traffic	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11277-009-9896-8	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11277-009-9896-8	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	The goal of the study presented in this paper is the accurate performance evaluation of adaptive beam-centric admission control (AC) for wideband code-division multiple access (WCDMA) multicell networks with non-uniform traffic requirements. Each NodeB employs antenna arrays (AAs), used either to form fixed grids of beams (FGoBs), or to steer and shape multiple beams towards directions of increased traffic, in an adaptive manner. The adaptive beam-centric AC maximizes the cell throughput in a multirate/multicell environment by grouping as many users as possible under a common beam formed by the AA, taking into account their spatial distribution and overall interference. Due to the increased complexity of the Monte Carlo (MC) simulations, a novel grid-enabled problem solving environment has been developed in order to reduce execution times considerably and make feasible full scale extensive simulations of complex operational scenarios (up to 4 tiers of cells, multiple beams per cell, non-uniform traffic distributions with different spatial characteristics). Results show that the network with the adaptive beam-centric AC can achieve significantly higher throughput per beam in multirate/multicell environments with hotspots. In particular, it is shown that the throughput per beam gain depends exponentially on the number of hotspots per cell and their angular width, and gains up to 200/350/700% can be achieved with 1/2/3 hotspots, respectively. Moreover, it is shown that the adaptive beam-centric AC provides significant reduction in interbeam handovers, which leads to more available resources in downlink, reduced signaling requirements and easier network planning. © 2009 Springer Science+Business Media, LLC.	en
heal.publisher	WILEY-BLACKWELL	en
heal.journalName	Wireless Personal Communications	en
dc.identifier.doi	10.1007/s11277-009-9896-8	en
dc.identifier.isi	ISI:000290317700010	en
dc.identifier.volume	58	en
dc.identifier.issue	2	en
dc.identifier.spage	369	en
dc.identifier.epage	389	en