On the combination of tropospheric and local environment propagation effects for mobile satellite systems above 10 GHz

Liolis, KP; Panagopoulos, AD; Scalise, S

dc.contributor.author	Liolis, KP	en
dc.contributor.author	Panagopoulos, AD	en
dc.contributor.author	Scalise, S	en
dc.date.accessioned	2014-03-01T01:34:01Z
dc.date.available	2014-03-01T01:34:01Z
dc.date.issued	2010	en
dc.identifier.issn	0018-9545	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20645
dc.subject	Channel modeling	en
dc.subject	Land mobile satellite (LMS)	en
dc.subject	Multipath fading	en
dc.subject	Rain attenuation	en
dc.subject	Ricean K-factor	en
dc.subject	Temperate/tropical climatic areas	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.classification	Transportation Science & Technology	en
dc.subject.other	CHANNEL MEASUREMENTS	en
dc.subject.other	CLIMATIC REGION	en
dc.subject.other	RADIO CHANNEL	en
dc.subject.other	RAIN	en
dc.subject.other	BAND	en
dc.subject.other	ATTENUATION	en
dc.subject.other	MULTIPATH	en
dc.subject.other	DISTRIBUTIONS	en
dc.subject.other	STATISTICS	en
dc.subject.other	PREDICTION	en
dc.title	On the combination of tropospheric and local environment propagation effects for mobile satellite systems above 10 GHz	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TVT.2009.2036731	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TVT.2009.2036731	en
heal.identifier.secondary	5337878	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Land mobile satellite (LMS) channels at the L (1/2 GHz) and S (2/4 GHz) frequency bands are mainly affected by propagation effects due to the local environment of a mobile terminal, such as multipath, shadowing, and blockage. Future systems for mobile satellite services (MSS) will operate at higher frequency bands, such as Ku (12/14 GHz) and Ka (20/30 GHz), where the tropospheric propagation effects also play an important role. Experimental campaigns conducted so far for Ku/Ka-band LMS channels have not considered any possible correlation between the tropospheric and local environment propagation effects. However, recent experimental work has indicated that these fading effects are not independent. As a first analytical approach to this open problem, a novel statistical analysis is presented in this paper. Emphasis is put on Ku/Ka-band LMS channels whose fading events can be modeled by the Ricean distribution with a relatively high K-factor. A novel analytical relationship between the Ricean K-factor and the rain attenuation effects is derived, and based on them, an analytical statistical prediction model for the distribution of the Ricean K-factor is derived. Particular attention is paid to the rainfall spatial inhomogeneity, as well as to the different effects of the climatic area of interest (temperate versus tropical) on the Ricean K-factor statistics. Thus, the presented analysis considers both spatially correlated bivariate lognormal and gamma statistics for the accurate characterization of rain attenuation. The proposed models are flexible and incorporate the impact of several critical operational, climatic, and geometrical parameters of an LMS channel on its multipath behavior under rainfall conditions. Useful numerical results are provided, specific future planned work is outlined, and the need for further experimental verification data is also pointed out. © 2006 IEEE.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Vehicular Technology	en
dc.identifier.doi	10.1109/TVT.2009.2036731	en
dc.identifier.isi	ISI:000275659600007	en
dc.identifier.volume	59	en
dc.identifier.issue	3	en
dc.identifier.spage	1109	en
dc.identifier.epage	1120	en