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

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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 http://hdl.handle.net/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.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

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