scholarly journals Performance of Micro-Scale Transmission & Reception Diversity Schemes in High Throughput Satellite Communication Networks

Electronics ◽  
2021 ◽  
Vol 10 (17) ◽  
pp. 2073
Author(s):  
Apostolos Z. Papafragkakis ◽  
Charilaos I. Kouroriorgas ◽  
Athanasios D. Panagopoulos
Keyword(s):  
Communication Networks ◽  
Large Scale ◽  
Satellite Communication ◽  
Rain Attenuation ◽  
Separation Distance ◽  
Limiting Factor ◽  
Micro Scale ◽  
Diversity Systems ◽  
Capacity Gain ◽  
Site Diversity

The use of Ka and Q/V bands could be a promising solution in order to accommodate higher data rate, interactive services; however, at these frequency bands signal attenuation due to the various atmospheric phenomena and more particularly due to rain could constitute a serious limiting factor in system performance and availability. To alleviate this possible barrier, short- and large-scale diversity schemes have been proposed and examined in the past; in this paper a micro-scale site diversity system is evaluated in terms of capacity gain using rain attenuation time series generated using the Synthetic Storm Technique (SST). Input to the SST was 4 years of experimental rainfall data from two stations with a separation distance of 386 m at the National Technical University of Athens (NTUA) campus in Athens, Greece. Additionally, a novel multi-dimensional synthesizer based on Gaussian Copulas parameterized for the case of multiple-site micro-scale diversity systems is presented and evaluated. In all examined scenarios a significant capacity gain can be observed, thus proving that micro-scale site diversity systems could be a viable choice for enterprise users to increase the achievable data rates and improve the availability of their links.

Large-scale site diversity for satellite communication networks

2002 ◽  
Vol 20 (4) ◽  
pp. 251-260 ◽  
Author(s):  
M. Luglio ◽  
R. Mancini ◽  
C. Riva ◽  
A. Paraboni ◽  
F. Barbaliscia
Keyword(s):  
Communication Networks ◽  
Large Scale ◽  
Satellite Communication ◽  
Site Diversity

Prediction of Joint Rain Attenuation Statistics Induced on Earth–Satellite Multiple Site Diversity Systems Using Gaussian Copula

2017 ◽  
Vol 16 ◽  
pp. 95-98 ◽  
Author(s):  
Arsim Kelmendi ◽  
Charilaos Kourogiorgas ◽  
Andrej Hrovat ◽  
Athanasios D. Panagopoulos ◽  
Gorazd Kandus ◽  
...  
Keyword(s):  
Earth Satellite ◽  
Rain Attenuation ◽  
Gaussian Copula ◽  
Multiple Site ◽  
Diversity Systems ◽  
Site Diversity

Rain Attenuation Prediction Model Based on Hyperbolic Cosecant Copula for Multiple Site Diversity Systems in Satellite Communications

2017 ◽  
Vol 65 (9) ◽  
pp. 4768-4779 ◽  
Author(s):  
Arsim Kelmendi ◽  
Gorazd Kandus ◽  
Andrej Hrovat ◽  
Charilaos I. Kourogiorgas ◽  
Athanasios D. Panagopoulos ◽  
...  
Keyword(s):  
Prediction Model ◽  
Satellite Communications ◽  
Rain Attenuation ◽  
Multiple Site ◽  
Model Based ◽  
Diversity Systems ◽  
Site Diversity

scholarly journals A Large-Scale Space-Time Stochastic Simulation Tool of Rain Attenuation for the Design and Optimization of Adaptive Satellite Communication Systems Operating between 10 and 50 GHz

2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
Nicolas Jeannin ◽  
Laurent Féral ◽  
Henri Sauvageot ◽  
Laurent Castanet ◽  
Frédéric Lacoste
Keyword(s):  
Time Series ◽  
Communication Systems ◽  
Large Scale ◽  
Satellite Communication ◽  
Scale Space ◽  
Rain Attenuation ◽  
Space Time ◽  
Design And Optimization ◽  
Space And Time ◽  
Precise Knowledge

The design and optimization of propagation impairment techniques for space telecommunication systems operating at frequencies above 20 GHz require a precise knowledge of the propagation channel both in space and time. For that purpose, space-time channel models have to be developed. In this paper the description of a model for the simulation of long-term rain attenuation time series correlated both in space and time is described. It relies on the definition of a stochastic rain field simulator constrained by the rain amount outputs of the ERA-40 reanalysis meteorological database. With this methodology, realistic propagation conditions can be generated at the scale of satellite coverage (i.e., over Europe or USA) for many years. To increase the temporal resolution, a stochastic interpolation algorithm is used to generate spatially correlated time series sampled at 1 Hz, providing that way valuable inputs for the study of the performances of propagation impairment techniques required for adaptive SatCom systems operating at Ka band and above.

scholarly journals Modeling of rain attenuation and site diversity predictions for tropical regions

2015 ◽  
Vol 33 (3) ◽  
pp. 321-331 ◽  
Author(s):  
F. A. Semire ◽  
R. Mohd-Mokhtar ◽  
W. Ismail ◽  
N. Mohamad ◽  
J. S. Mandeep
Keyword(s):  
Elevation Angle ◽  
Orientation Angle ◽  
Rain Attenuation ◽  
Separation Distance ◽  
Statistical Prediction ◽  
Percentage Error ◽  
International Telecommunication Union ◽  
Tropical Regions ◽  
Slant Path ◽  
Site Diversity

Abstract. Presented in this paper is an empirical model for long-term rain attenuation prediction and statistical prediction of site diversity gain on a slant path. Rain attenuation prediction on a slant path is derived using data collected from tropical regions, and the formula proposed is based on Gaussian distribution. The proposed rain attenuation model shows a considerable reduction in prediction error in terms of standard deviation and root-mean-square (rms) error. The site diversity prediction model is derived as a function of site separation distance, frequency of operation, elevation angle and baseline orientation angle. The novelty of the model is the inclusion of low elevation angles and a high link frequency up to 70 GHz in the model derivation. The results of comparison with Hodge, Panagopoulos and Nagaraja empirical predictions show that the proposed model provides a better performance for site separation distance and elevation angle. The overall performance of the proposed site diversity model is good, and the percentage error is within the allowable error limit approved by International Telecommunication Union – Region (ITU-R).

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