Adaptive Antennas for Microcellular and Mixed Cell Environments with DS-CDMA

Tsoulos, GV; Athanasiadou, GE; Beach, MA; Swales, SC

dc.contributor.author	Tsoulos, GV	en
dc.contributor.author	Athanasiadou, GE	en
dc.contributor.author	Beach, MA	en
dc.contributor.author	Swales, SC	en
dc.date.accessioned	2014-03-01T01:47:07Z
dc.date.available	2014-03-01T01:47:07Z
dc.date.issued	1998	en
dc.identifier.issn	09296212	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25146
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0032136020&partnerID=40&md5=47349e15b1bd38f64d5b0e1eb2b4f5f0	en
dc.subject	Adaptive antennas	en
dc.subject	DS-CDMA	en
dc.subject	Microcells	en
dc.subject	Propagation	en
dc.subject	Umbrella cells	en
dc.subject.other	Adaptive filtering	en
dc.subject.other	Bandwidth	en
dc.subject.other	Digital communication systems	en
dc.subject.other	Electromagnetic wave propagation	en
dc.subject.other	Mobile antennas	en
dc.subject.other	Network protocols	en
dc.subject.other	Sensitivity analysis	en
dc.subject.other	Spread spectrum communication	en
dc.subject.other	Adaptive antennas	en
dc.subject.other	Direct sequence code division multiple access (DSCDMA)	en
dc.subject.other	Mixed cell environments	en
dc.subject.other	Cellular radio systems	en
dc.title	Adaptive Antennas for Microcellular and Mixed Cell Environments with DS-CDMA	en
heal.type	journalArticle	en
heal.publicationDate	1998	en
heal.abstract	Adaptive antenna technology is now regarded as one of the key system components in future generation cellular networks. This paper considers the performance of a DS-CDMA system which employs adaptive antennas at the base station sites of both microcell and mixed micro/umbrella cell operational environments. A microcellular ray tracing propagation tool has been employed in order to ascertain site specific propagation data. Results for a typical small cell environment highlight both the propagation characteristics and the behaviour of the adaptive antenna, as well as the sensitivity of the system upon parameters such as the mutual coupling effect. This work does not assume idealised propagation conditions or antenna radiation patterns for the small cell analysis. In summary, the results indicate that microcellular base stations employing adaptive antenna signal processing can offer a significant capacity enhancement and improved channel characteristics when compared with their omnidirectional counterparts. In addition, it is shown that umbrella cells overlaying microcells within the same RF bandwidth allocation, do not impact upon system capacity providing that adaptive antenna technology is employed at the umbrella cell site.	en
heal.journalName	Wireless Personal Communications	en
dc.identifier.volume	7	en
dc.identifier.issue	2-3	en
dc.identifier.spage	147	en
dc.identifier.epage	169	en