Feasibility analysis of a HAP-LEO optical link for data relay purposes

Antonini, M.; Betti, S.; Carrozzo, V.; Duca, Elisa; Ruggieri, M.

doi:10.1109/aero.2006.1655897

Cited by 18 publications

(13 citation statements)

References 4 publications

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“…DPSK has recently received considerable attention in OW research since it attains a 3 dB sensitivity benefit over on-off keying (OOK), and reduced peak power which mitigates any nonlinear effects [13]. For these reasons it has been proposed as 0733-8724/$26.00 © 2009 IEEE an effective modulation scheme for terrestrial [14] as well as for satellite optical systems [15]. 1 The laser beams propagate along a horizontal path through a gamma-gamma turbulence channel with additive white Gaussian noise (AWGN) in the presence of pointing errors.…”

Section: System and Channel Modelmentioning

confidence: 99%

See 1 more Smart Citation

Optical Wireless Communications With Heterodyne Detection Over Turbulence Channels With Pointing Errors

Sandalidis

Tsiftsis

Karagiannidis

2009

J. Lightwave Technol.

392

200

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We study the error performance of an heterodyne differential phase-shift keying (DPSK) optical wireless (OW) communication system operating under various intensity fluctuations conditions. Specifically, it is assumed that the propagating signal suffers from the combined effects of atmospheric turbulence-induced fading, misalignment fading (i.e., pointing errors) and path-loss. Novel closed-form expressions for the statistics of the random attenuation of the propagation channel are derived and the bit-error rate (BER) performance is investigated for all the above fading effects. Numerical results are provided to evaluate the error performance of OW systems with the presence of atmospheric turbulence and/or misalignment. Moreover, nonlinear optimization is also considered to find the optimum beamwidth that achieves the minimum BER for a given signal-to-noise ratio value.

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Section: System and Channel Modelmentioning

confidence: 99%

“…(26)] and [18, eq. (9.31.5)] leading to (15) Similarly, the above equation can also be expressed in terms of generalized hypergeometric functions.…”

Section: Statistics Of the Combined Attenuationmentioning

confidence: 99%

Optical Wireless Communications With Heterodyne Detection Over Turbulence Channels With Pointing Errors

Sandalidis

Tsiftsis

Karagiannidis

2009

J. Lightwave Technol.

392

200

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show abstract

“…There are only few works which consider an optical link between the satellite and UAV. In [16], feasibility of a satellite to HAP FSO link for the relay purpose is analyzed by obtaining the capacity and efficiency. In [17], authors have proposed an FSO based UAV to satellite optical communication system and the PDF expression and bit-error-rate (BER) expression for binary phase shift keying (BPSK) are derived for both the uplink and downlink scenario.…”

Section: Introductionmentioning

confidence: 99%

Performance of UAV-Assisted Multiuser Terrestrial-Satellite Communication System Over Mixed FSO/RF Channels

Singya

Alouini

2022

IEEE Trans. Aerosp. Electron. Syst.

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In this work, performance of a multi-antenna multiuser unmanned aerial vehicle (UAV) assisted terrestrial-satellite communication system over mixed free space optics (FSO)/ radio frequency (RF) channels is analyzed. Downlink transmission from the satellite to the UAV is completed through FSO link which follows Gamma-Gamma distribution with pointing error impairments. Both the heterodyne detection and intensity modulation direct detection techniques are considered at the FSO receiver. To avail the antenna diversity, multiple transmit antennas are considered at the UAV. Selective decodeand-forward scheme is assumed at the UAV and opportunistic user scheduling is performed while considering the practical constraints of outdated channel state information (CSI) during the user selection and transmission phase. The RF links are assumed to follow Nakagami-m distribution due to its versatile nature. In this context, for the performance analysis, analytical expressions of outage probability, asymptotic outage probability, ergodic capacity, effective capacity, and generalized average symbolerror-rate expressions of various quadrature amplitude modulation (QAM) schemes such as hexagonal-QAM, cross-QAM, and rectangular QAM are derived. A comparison of various modulation schemes is presented. Further, the impact of pointing error, number of antennas, delay constraint, fading severity, and imperfect CSI are highlighted on the system performance. Finally, all the analytical results are verified through the Monte-Carlo simulations.

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“…We can see that under the optical wireless link condition between a UAV and a satellite at a height of 36,000 km, V. Cazaubiel realized the uplink of 2 Mb/s and the downlink of 50 Mb/s [ 33 ]. In the experimental environment [ 47 , 48 , 49 , 50 , 51 ], the transmission rate in the magnitude of Gb/s has been realized, and the above experiments have preliminarily confirmed the availability of an optical wireless link between UAV and satellite.…”

Section: Unmanned Aerial Vehicle (Uav)-satellite Optical Wireless mentioning

confidence: 83%

Frontier Progress of Unmanned Aerial Vehicles Optical Wireless Technologies

Ding

Mei

Chih‐Lin

et al. 2020

Sensors

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With the continuous maturity of unmanned aerial vehicles (UAV) in materials, communications, and other related technologies, the UAV industry has developed rapidly in recent years. In order to cope with the diversified emerging business forms, the explosive growth of the scale of data traffic, number of terminal connections, high reliability, low-latency, and high transmission rate provided by the fifth generation (5G) network will inject new vitality into the development of the UAVs industry. In this paper, optical wireless technology is introduced into the UAV platform, combining theory with practical applications. We explain many research advances and key technologies in the four aspects of “air, space, earth, and sea” to achieve a strong and broadband communication link. This discussion focuses on link modeling, parameter optimization, experimental testing, and the status quo of UAVs in different application scenarios with optical wireless link configurations. At the same time, based on the current situation of UAV optical wireless technology, the technical problems and the research direction in the future are also discussed.

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Feasibility analysis of a HAP-LEO optical link for data relay purposes

Cited by 18 publications

References 4 publications

Optical Wireless Communications With Heterodyne Detection Over Turbulence Channels With Pointing Errors

Optical Wireless Communications With Heterodyne Detection Over Turbulence Channels With Pointing Errors

Performance of UAV-Assisted Multiuser Terrestrial-Satellite Communication System Over Mixed FSO/RF Channels

Frontier Progress of Unmanned Aerial Vehicles Optical Wireless Technologies

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