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Hybrid FSO/RF-FSO Systems over Generalized Málaga Distributed Channels with Pointing Errors
2019 27th European Signal Processing Conference (EUSIPCO), 2019The combined effect of Malaga distributed atmospheric turbulence and pointing errors on the performance of a hybrid free-space optical (FSO)/ radio-frequency (RF)-FSO communication system is presented and analyzed in this paper. We considered three performance metrics, namely, outage probability, average bit error rate (BER) and average capacity.
Banibrata Bag +3 more
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Multi-user FSO communication link
2017 Cognitive Communications for Aerospace Applications Workshop (CCAA), 2017Free Space Optical (FSO) communication technology has a data rate higher than other wireless communication techniques. Although FSO has enjoyed widespread notoriety for its point-to-point communication, the increasing demand of mobile platforms and multi-user communications requires considerable improvement over current FSO systems.
Federica Aveta +2 more
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Estimation of terrestrial FSO availability
Free-Space Laser Communication and Atmospheric Propagation XXX, 2018The availability of free space optics (FSO) links remains an important question in wide-scale deployment of the technology. As with microwave links, for any given terminal design there will be a correlation between the range between nodes and the link availability. This correlation will change depending on location and season. The key variables are the
William S. Rabinovich +7 more
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Optimization of FSO quantum backscatter communication
Applied Optics, 2019In this paper, the free-space optics (FSO) quantum backscatter communication (QBC), inspired by the quantum illumination concept, is described. In this method, the transmitter generates entangled photon pairs. The signal photon is transmitted in the direction of the modulated retro reflector (MRR) or the tag antenna, and the idler photon is moved to ...
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OFDM-FSO Communication System Analysis
2021In this paper, we have presented the performance analysis of a QAM-orthogonal frequency-division multiplexing (OFDM)-free space optics (FSO) (QAM-OFDM-FSO) transmission system, based on optical double sideband (ODSB), optical single sideband (OSSB), and optical vestigial sideband transmission scheme. Simulation models have been developed for optimizing
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2012 IV International Congress on Ultra Modern Telecommunications and Control Systems, 2012
The paper deals with the design of a test link for the characterization of a hybrid Free Space Optical/Radio-Frequency (FSO/RF) atmospheric channel. The ever-increasing demand on broadband connectivity, specifically in the Last-Mile networks, leads to the use of Free-Space optical systems in combination with RF systems above 100 GHz, which are able to ...
Zdenek Kolka +3 more
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The paper deals with the design of a test link for the characterization of a hybrid Free Space Optical/Radio-Frequency (FSO/RF) atmospheric channel. The ever-increasing demand on broadband connectivity, specifically in the Last-Mile networks, leads to the use of Free-Space optical systems in combination with RF systems above 100 GHz, which are able to ...
Zdenek Kolka +3 more
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2009 19th International Conference Radioelektronika, 2009
The paper deals with a bridge for atmospheric Free-Space Optical links. The atmospheric turbulence causes fades whose duration is typically in the order of tens of milliseconds, which results in the loss of hundreds or thousands of packets. The loss is misinterpreted by the TCP protocol as network congestion and leads to throttling the sender ...
Michal Kubicek, Zdenik Kolka
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The paper deals with a bridge for atmospheric Free-Space Optical links. The atmospheric turbulence causes fades whose duration is typically in the order of tens of milliseconds, which results in the loss of hundreds or thousands of packets. The loss is misinterpreted by the TCP protocol as network congestion and leads to throttling the sender ...
Michal Kubicek, Zdenik Kolka
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FSO in Satellite Communication
This project focuses on understanding the different factors involved in establishing communication between ground station and satellite. With the help of m-QAM and different simulation channels analyze the way channel affects the transmitted signal and data.Mugelan, RK, Jadhav, Varad, Paul, Basil
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Secrecy Outage of Threshold-Based FSO/RF-FSO Switching Systems
The Journal of Korean Institute of Communications and Information Sciences, 2020Dae-Kyo Jeong +2 more
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2017
The turbulence in an FSO link causes fluctuations in the intensity and the phase of the received signal. These fluctuations ultimately lead to the degradation in the link error probability and limit the system performance. In this chapter, bit error rate (BER) performance of coherent subcarrier (SC-BPSK and SC-QPSK) and noncoherent (OOK and \(\mathbb{M}
Hemani Kaushal, V. K. Jain, Subrat Kar
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The turbulence in an FSO link causes fluctuations in the intensity and the phase of the received signal. These fluctuations ultimately lead to the degradation in the link error probability and limit the system performance. In this chapter, bit error rate (BER) performance of coherent subcarrier (SC-BPSK and SC-QPSK) and noncoherent (OOK and \(\mathbb{M}
Hemani Kaushal, V. K. Jain, Subrat Kar
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