An adaptive beam-shaping strategy for WCDMA multicellular networks with non-uniform traffic requirements

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

dc.contributor.author	Gkonis, PK	en
dc.contributor.author	Tsoulos, GV	en
dc.contributor.author	Athanasiadou, GE	en
dc.contributor.author	Kaklamani, DI	en
dc.date.accessioned	2014-03-01T01:27:51Z
dc.date.available	2014-03-01T01:27:51Z
dc.date.issued	2008	en
dc.identifier.issn	17962021	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18610
dc.subject	Adaptive beamforming	en
dc.subject	Hospot areas	en
dc.subject	Monte Carlo simulations	en
dc.subject	WCDMA	en
dc.subject.other	Adaptive beamforming	en
dc.subject.other	Central cells	en
dc.subject.other	Downlink transmissions	en
dc.subject.other	Fixed grids	en
dc.subject.other	Hospot areas	en
dc.subject.other	Hot spots	en
dc.subject.other	Monte Carlo simulations	en
dc.subject.other	Multirate services	en
dc.subject.other	Non uniforms	en
dc.subject.other	Sectorization	en
dc.subject.other	Traffic distributions	en
dc.subject.other	Uniform traffics	en
dc.subject.other	WCDMA	en
dc.subject.other	Wcdma systems	en
dc.subject.other	Wideband code-division multiple accesses	en
dc.subject.other	Adaptive antenna arrays	en
dc.subject.other	Antenna arrays	en
dc.subject.other	Blocking probability	en
dc.subject.other	Monte Carlo methods	en
dc.subject.other	MOSFET devices	en
dc.subject.other	Probability distributions	en
dc.subject.other	Throughput	en
dc.subject.other	Wireless telecommunication systems	en
dc.subject.other	Computer networks	en
dc.title	An adaptive beam-shaping strategy for WCDMA multicellular networks with non-uniform traffic requirements	en
heal.type	journalArticle	en
heal.identifier.primary	10.4304/jcm.3.4.16-25	en
heal.identifier.secondary	http://dx.doi.org/10.4304/jcm.3.4.16-25	en
heal.publicationDate	2008	en
heal.abstract	This paper investigates the performance of an adaptive beam-shaping (ABS) strategy for wideband code division multiple access (WCDMA) multicellular networks with antenna arrays (AAs) at the base station (BS). The purpose of this ABS strategy is to form beams in directions of increased traffic distribution while at the same time minimize the total downlink transmission power. Performance is evaluated statistically with Monte Carlo (MC) simulations through a grid-enabled WCDMA system level simulator in terms of achievable throughput per beam for a network with up to four tiers of cells and increased loading (up to 90%). Results are presented for multirate services which show that the proposed ABS strategy can increase the throughput per beam relatively to a fixed grid of beams sectorization strategy up to 75/120/165% with 1/2/3 hotspots per cell respectively, while this gain is up to 35% for uniform traffic distribution. Moreover, it is shown that this gain can be achieved while at the same time the blocking probability in the central cell is reduced and the overall throughput of the network increased. © 2008 Academy Publisher.	en
heal.journalName	Journal of Communications	en
dc.identifier.doi	10.4304/jcm.3.4.16-25	en
dc.identifier.volume	3	en
dc.identifier.issue	4	en
dc.identifier.spage	16	en
dc.identifier.epage	25	en