Fading Correlation Analysis in MIMO-OFDM Troposcatter Communications: Space, Frequency, Angle and Space-Frequency Diversity

Dinc, Ergin; Akan, Özgür B.

doi:10.1109/tcomm.2014.2387159

Cited by 27 publications

(21 citation statements)

References 20 publications

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“…So, in [14]- [17], using the technique of ray tracing, an analytical model of the ring scattering ring (RSM) was developed that allows us to estimate the correlation of fading in tropospheric systems, depending on spatial, frequency and angular diversity. This model can use the results of real measurements of water and steam, taking into account air turbulence fluctuations.…”

Section: Introductionmentioning

confidence: 99%

Troposcatter Communication Link Model Based on Ray-Tracing

Ilchenko

Kravchuk

Міночкін

et al. 2018

Information and Telecommunication Sciences

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Background. At present, the demand in tropospheric over-the-horizon communication systems determines the inherent advantages of these systems over satellite and radio-relay systems of direct visibility, especially in combat and emergency situations. Although the fundamentals of the theory of tropospheric scattering were developed as early as the middle of the last century, the development of over-the-horizon systems requires constant refinements of known theoretical positions in accordance with new data on the nature of tropospheric scattering, atmospheric inhomogeneities, capabilities of new methods for calculating and estimating radio propagation. Objective. The aim of the work is to develop a radio link model of a trans-horizon tropospheric communication to study the possibility of controlling (improving) attenuation on such a route by changing the electrophysical characteristics of the environment, in particular atmospheric turbulence, or using artificial formations in the atmosphere. Methods. The created model is based on the Ray-tracing method. Results. A model of radio link losses in the over-horizon tropospheric communication (long-range tropospheric propagation) was developed, based on the ray-tracing technique in two versions: simplified, with homogeneous layers, and full, with a combination of blocks of structures of scattering spheres in each of the layers. A study of the possibility of improving attenuation along the tropospheric scattering pathway by regulating changes in the electrophysical parameters of inhomogeneities and artificial formations in the atmosphere was conducted. Conclusions. The convergence of the results of the simulation with the data obtained by known / traditional analytical models for calculating the losses on the tropospheric scattering path confirms the adequacy of the proposed model to the statistical data of the real losses in tropospheric scattering. The obtained results indicate that, for practical purposes, the accuracy of calculations of the loss characteristics is sufficient and that they can be used to form a tropospheric dispersion route with significantly reduced loss values by artificially adding a certain liquid or solid substance to the atmospheric heterogeneity.

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Section: Introductionmentioning

confidence: 99%

Troposcatter Communication Link Model Based on Ray-Tracing

Ilchenko

Kravchuk

Міночкін

et al. 2018

Information and Telecommunication Sciences

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“…The troposcatter channel fading correlation has been well studied under cooperative occasions, e.g. communication both theoretically [5][6][7][8][9][10][11][12] and experimentally [13][14][15][16][17][18][19][20][21][22]. Troposcatter communication is marred by channel fading, while diversity receptions provide additional independent channels to relieve fading deterioration, and consequently promote the communications reliability and data rate efficiently.…”

Section: Introductionmentioning

confidence: 99%

Fading correlation modelling for troposcatter microwave propagation in array antenna detection applications

Wang¹,

Wang²,

Wang³

et al. 2017

IET Microwaves, Antennas & Propagation

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Microwave over‐the‐horizon (OTH) propagation through troposcatter is a valuable candidate for remote targets detection. Array antenna is promising to handle the contradiction between real‐time wide spatial coverage requirement and high antenna gain to capture weak scattering signal. The detection tactics and performance of array receiving systems are significantly affected by the fading correlation between array antennas, but there is no analytical study which considers the fading correlation in troposcatter passive sensing environments for uncooperative targets. In this study, an analytical method based on a scattering transfer function is proposed to derive the channel fading correlation, and the result is a function of transmitter deviation and spatial, temporal, frequency, angular separations of receiving array antennas in uncooperative troposcatter circumstances. In addition, the OTH troposcatter array receiving signal model is derived by exploiting the fading correlation to form the covariance structure of the received array signal, adding up with the signal transmission loss. Existing experimental results validate the derived fading correlations, and the simulation results validate the OTH passive detection performance based on the provided signal model.

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“…In this work, we also utilize the same data sets [15] to model the atmospheric variations in the presence of rain to derive data rates and rain loss results. This approach [2] is also utilized in [3] to derive data rates for diversity techniques. In this way, PDS of the channel is calculated for each measurement instant with (1) and the path length calculations in [2], [11].…”

Section: Maximum Data Ratementioning

confidence: 99%

“…T ROPOSCATTER communications utilize scattering effect of lower troposphere to provide direct communication at BLOS ranges up to 300 km [1]- [3]. Troposcatter communication has high losses due to high path lengths and scattering.…”

Section: Introductionmentioning

confidence: 99%

A Nonuniform Spatial Rain Attenuation Model for Troposcatter Communication Links

Dinc

Akan

2015

IEEE Wireless Commun. Lett.

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Troposcatter communication can be used as a communication medium for Beyond-Line-of-Sight (BLOS) links. However, wave propagation in troposphere shows significant dependence on hydro-meteors: especially rain. Therefore, the main motivation of this paper is to develop a rain attenuation model for troposcatter communications which can model nonuniform multiple rain cells for the first time. At the end, we present simulation results for the amount of rain loss and the distribution of maximum data rates under rain in troposcatter links.

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Fading Correlation Analysis in MIMO-OFDM Troposcatter Communications: Space, Frequency, Angle and Space-Frequency Diversity

Cited by 27 publications

References 20 publications

Troposcatter Communication Link Model Based on Ray-Tracing

Troposcatter Communication Link Model Based on Ray-Tracing

Fading correlation modelling for troposcatter microwave propagation in array antenna detection applications

A Nonuniform Spatial Rain Attenuation Model for Troposcatter Communication Links

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