A UTD Propagation Model in Urban Microcellular Environments

Kanatas, AG

dc.contributor.author	Kanatas, AG	en
dc.date.accessioned	2014-03-01T01:45:53Z
dc.date.available	2014-03-01T01:45:53Z
dc.date.issued	1997	en
dc.identifier.issn	00189545	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24767
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.other	Calculations	en
dc.subject.other	Cellular radio systems	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electromagnetic wave diffraction	en
dc.subject.other	Electromagnetic wave polarization	en
dc.subject.other	Electromagnetic wave reflection	en
dc.subject.other	Geometrical optics	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mobile telecommunication systems	en
dc.subject.other	Three dimensional	en
dc.subject.other	Power delay profile	en
dc.subject.other	Ray tracing method	en
dc.subject.other	Signal path loss	en
dc.subject.other	Electromagnetic wave propagation	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.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 ray-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. © 1997 IEEE.	en
heal.journalName	IEEE Transactions on Vehicular Technology	en
dc.identifier.doi	10.1109/25.554751	en
dc.identifier.volume	46	en
dc.identifier.issue	1	en
dc.identifier.spage	185	en
dc.identifier.epage	193	en