Journal ArticleDOI
Cloud Attenuation Statistics Prediction From Ka -Band to Optical Frequencies: Integrated Liquid Water Content Field Synthesizer
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TLDR
A unified space-time model for the prediction of induced attenuation due to clouds for frequencies above Ka-band up to optical range is presented and shows encouraging results.Abstract:
The impact of cloud impairments on satellite links is increasing with the employment of higher frequency bands. In this paper, a model for predicting cloud attenuation statistics for satellite communication systems operating from $Ka$ -band to optical range is presented. The cloud attenuation must be accurately quantified for the reliable design of satellite communication systems. A stochastic dynamic model for the generation of integrated liquid water content (ILWC) fields is proposed. The model is based on the stochastic differential equations and incorporates the spatial and temporal behavior of ILWC. Classifying the cloud types based on the cloud vertical extent and using the microphysical properties of clouds, the well-known Mie scattering theory and the global statistics for ILWC by International Telecommunications Union–Radio (ITU-R), a unified space-time model for the prediction of induced attenuation due to clouds for frequencies above $Ka$ -band up to optical range is presented. The proposed model is tested in terms of first order statistics, compared first with ITU-R P.840-6 model and then with data obtained in the literature, showing encouraging results. Moreover, the probability of cloud occurrence for optical satellite single and site diversity system is calculated. Finally, the limitations and the applicability of the proposed model are discussed.read more
Citations
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Journal ArticleDOI
Satellite Communications in the New Space Era: A Survey and Future Challenges
Oltjon Kodheli,Eva Lagunas,Nicola Maturo,Shree Krishna Sharma,Bhavani Shankar,Jesus Fabian Mendoza Montoya,Juan Carlos Merlano Duncan,Danilo Spano,Symeon Chatzinotas,Steven Kisseleff,Jorge Querol,Lei Lei,Thang X. Vu,George Goussetis +13 more
TL;DR: In this article, the authors present a survey of the state of the art in satellite communications, while highlighting the most promising open research topics, such as new constellation types, on-board processing capabilities, non-terrestrial networks and space-based data collection/processing.
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Optimum Monthly Based Selection of Ground Stations for Optical Satellite Networks
TL;DR: The monthly variation of cloud coverage statistics is investigated and exploited for the optimum selection of optical ground stations for satellite communication networks at optical frequencies.
Journal ArticleDOI
Capacity Statistics Evaluation for Next Generation Broadband MEO Satellite Systems
Charilaos I. Kourogiorgas,Nikolaos K. Lyras,Athanasios D. Panagopoulos,Daniele Tarchi,Alessandro Vanelli-Coralli,Alessandro Ugolini,Giulio Colavolpe,Pantelis-Daniel Arapoglou +7 more
TL;DR: A system study investigating the option of using Q/V- band, or even optical wavelengths, instead of Ka-band, to deliver substantially higher system capacity is reported on.
Journal ArticleDOI
Cloud Free Line of Sight Prediction Modeling for Optical Satellite Communication Networks
TL;DR: Analytical models for the prediction of cloud-free line-of-sight (CFLOS) probability for a single optical satellite link and for multiple spatially separated optical satellite links are presented.
Journal ArticleDOI
High-Resolution ITU-R Cloud Attenuation Model for Satellite Communications in Tropical Region
TL;DR: In this paper, the precipitable water vapor (PWV) data from Global Navigation Satellite System (GNSS) is introduced into ITU-R cloud attenuation model for higher temporal and spatial resolution for a tropical region.
References
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