A UTD propagation model in urban microcellular environments

Kanatas, AG; Kountouris, ID; Kostaras, GB; Constantinou, P

dc.contributor.author	Kanatas, AG	en
dc.contributor.author	Kountouris, ID	en
dc.contributor.author	Kostaras, GB	en
dc.contributor.author	Constantinou, P	en
dc.date.accessioned	2014-03-01T01:12:35Z
dc.date.available	2014-03-01T01:12:35Z
dc.date.issued	1997	en
dc.identifier.issn	0018-9545	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12151
dc.subject	path loss	en
dc.subject	power-delay profile	en
dc.subject	propagation modeling	en
dc.subject	uniform theory of diffraction	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.classification	Transportation Science & Technology	en
dc.subject.other	RADIO PROPAGATION	en
dc.subject.other	PREDICTION	en
dc.subject.other	DIFFRACTION	en
dc.subject.other	TERRAIN	en
dc.subject.other	MOBILE	en
dc.title	A UTD propagation model in urban microcellular environments	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/25.554751	en
heal.identifier.secondary	http://dx.doi.org/10.1109/25.554751	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	This paper presents a three-dimensional (3-D) propagation model for path-loss prediction in a typical urban site, based on geometrical optics (GO) and uniform theory of diffraction (UTD), The model takes into account numerous rays that undergo reflections from ground and wall surfaces and diffraction from corners or rooftops of buildings. The exact location of reflection and diffraction points is essential in order to calculate the polarization components of the reflected and diffracted fields and their trajectories, This is accomplished by local rag-fixed coordinate systems in combination with appropriate dyadic reflection and diffraction coefficients. Finally, a vector addition of the received fields is carried out to obtain the total received field strength and, subsequently, the path loss along a predetermined route. The model computes the contributions of various categories of rays, as selected, in a flexible manner, Several results-path loss versus distance and power-delay profile-are given, and comparisons with measured data are presented.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY	en
dc.identifier.doi	10.1109/25.554751	en
dc.identifier.isi	ISI:A1997WJ49200020	en
dc.identifier.volume	46	en
dc.identifier.issue	1	en
dc.identifier.spage	185	en
dc.identifier.epage	193	en