Coherent detection; Fiber optics systems; Fiber-optics; Free spaces; Free-space optical; KeY systems; Learn+; Optical channel model; State of the art; Time frequency; Signal Processing; Computer Networks and Communications
Abstract :
[en] The paper summarizes the recent investigation on feasibility of adapting state-of-the-art coherent fiber-optics (FO) systems for Free Space Optical (FSO) scenarios. This investigation is critically dependent on the intertwined aspects of architecture, as well as device and propagation impairments (including the channel) appearing in the aforementioned systems. Towards this, the work identified the key system differences between the two systems. Particularly, the FSO channel model was investigated, impact of atmospheric turbulence on FSO was discussed and a channel series was generated. Subsequently, relevant FO techniques including coherent detection, wavelength division multiplexing and Time-Frequency packing (TFP) were reviewed. Another departure from FSO works was the emphasis on coherent reception; receiver architectures and diversity schemes were first investigated. The former strived to make fair comparison amongst the receivers considering the diverse nature of perturbation added, while the latter indicated gain in performance through increase of diversity order (2-4 dB gain). An immediate conclusion is a suggestion on adaptation of wavelength diversity when coherent receivers. The investigation also evaluated the capacity and outage of fast and slow fading channels with parameters motivated by the channel modelling work. The shaping gain was evaluated and an LDPC code design example was provided for FSO downlinks. Finally, TFP enabled a remarkable performance gain when applied to coherent detection schemes, but only marginal with direct detection. The paper concludes by pointing to the next steps that build on this investigation and the need to corroborate with measurements.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SPARC- Signal Processing Applications in Radar and Communications
Disciplines :
Electrical & electronics engineering
Author, co-author :
Vannucci, A.; University of Parma, Parma, Italy
Foggi, T.; University of Parma, Parma, Italy
Zahr, A.; German Aerospace Centre, DLR, Oberpfaffenhofen, Germany
CHOUGRANI, Houcine ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Matuz, B.; German Aerospace Centre, DLR, Oberpfaffenhofen, Germany
MYSORE RAMA RAO, Bhavani Shankar ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SPARC
Colavolpe, G.; University of Parma, Parma, Italy
External co-authors :
yes
Language :
English
Title :
From fibers to satellites: Lessons to learn and pitfalls to avoid when optical communications move to long distance free space
Publication date :
07 March 2023
Event name :
2022 56th Asilomar Conference on Signals, Systems, and Computers
Event place :
Virtual, Online, Usa
Event date :
31-10-2022 => 02-11-2022
Audience :
International
Main work title :
56th Asilomar Conference on Signals, Systems and Computers, ACSSC 2022
T. Foggi, E. Forestieri, G. Colavolpe, and G. Prati, "Maximum likelihood sequence detection with closed-form metrics in OOK optical systems impaired by GVD e PMD, " J. Lightwave Tech., vol. 24, no. 8, pp. 3073-3087, Aug. 2006.
G. Colavolpe, T. Foggi, E. Forestieri, and G. Prati, "Multilevel optical systems with MLSD receivers insensitive to GVD and PMD, " J. Lightwave Tech., vol. 26, pp. 1263-1273, May 15 2008.
-, "Robust multilevel coherent optical systems with linear processing at the receiver, " J. Lightwave Tech., vol. 27, no. 13, pp. 2357-2369, July 1 2009.
A. Barbieri, D. Fertonani, and G. Colavolpe, "Time-frequency packing for linear modulations: Spectral efficiency and practical detection schemes, " IEEE Trans. Commun., vol. 57, pp. 2951-2959, Oct. 2009.
G. Colavolpe, T. Foggi, A. Modenini, and A. Piemontese, "Faster-than-Nyquist and beyond: How to improve spectral efficiency by accepting interference, " Opt. Express, vol. 19, no. 27, pp. 26 600-26 609, Dec 2011. [Online]. Available: Http: //www. opticsexpress. org/abstract. cfm?URI=oe-19-27-26600
G. Colavolpe and T. Foggi, "Time-frequency packing for high capacity coherent optical links, " IEEE Trans. Commun., vol. 62, pp. 2986-2995, Aug. 2014.
T. Foggi, G. Colavolpe, A. Bononi, and P. Serena, "Spectral efficiency optimization in flexi-grid long-haul optical systems, " J. Lightwave Tech., vol. 33, no. 13, pp. 2735-2742, 2015.
M. Secondini, T. Foggi, F. Fresi, G. Meloni, F. Cavaliere, G. Colavolpe, E. Forestieri, L. Potì R. Sabella, and G. Prati, "Optical time-frequency packing: Principles, design, implementation, and experimental demonstration, " J. Lightwave Tech., vol. 33, no. 17, pp. 3558-3570, Sept. 1 2015.
G. Böcherer, F. Steiner, and P. Schulte, "Bandwidth efficient and ratematched low-density parity-check coded modulation, " IEEE Transactions on Communications, vol. 63, no. 12, pp. 4651-4665, 2015.
P. Schulte and G. Böcherer, "Constant composition distribution matching, " IEEE Transactions on Information Theory, vol. 62, no. 1, pp. 430-434, 2016.
A. Barbieri, G. Colavolpe, T. Foggi, E. Forestieri, and G. Prati, "OFDM vs. single-carrier transmission for 100 Gbps optical communication, " J. Lightwave Tech., vol. 28, no. 17, pp. 2537-2551, September 1 2010.
CCSDS, 142. 0-B-1, Recommended standard-Optical Communications Coding Synchronization, August 2019.
CCSDS, 141. 0-B-1, Recommended standard + Pink Sheets for O3K-Optical Communications Physical Layer, February 2020.
A. Mengali, C. Kourogiorgas, N. Lyras, B. S. M. R, A. Panagopoulos, and K. Liolis, Optical Feeder Links Study towards Future Generation MEO VHTS Systems, 2017, p. 5411.
A. Mengali, C. I. Kourogiorgas, N. K. Lyras, B. Shankar Mysore Rama Rao, F. Kayhan, A. D. Panagopoulos, T. Bäumer, and K. Liolis, "Ground-to-GEO optical feeder links for very high throughput satellite networks: Accent on diversity techniques, " International Journal of Satellite Communications and Networking, 2020.
L. Paillier, R. Le Bidan, J.-M. Conan, G. Artaud, N. Védrenne, and Y. Jaoüen, "Space-ground coherent optical links: Ground receiver performance with adaptive optics and digital phase-locked loop, " Journal of Lightwave Technology, vol. 38, no. 20, pp. 5716-5727, 2020.
K. A. Winick, "Atmospheric turbulence-induced signal fades on optical heterodyne communication links, " Applied optics, vol. 25, no. 11, pp. 1817-1825, 1986.
M. A. Khalighi and M. Uysal, "Survey on free space optical communication: A communication theory perspective, " IEEE communications surveys & tutorials, vol. 16, no. 4, pp. 2231-2258, 2014.
L. C. Andrews and R. L. Phillips, "Laser beam propagation through random media. " SPIE, 2005.
V. I. Tatarski, Wave propagation in a turbulent medium. Courier Dover Publications, 2016.
L. C. Andrews, R. L. Phillips, and C. Y. Hopen, Laser beam scintillation with applications. SPIE press, 2001, vol. 99.
A. Al-Habash, L. C. Andrews, and R. L. Phillips, "Mathematical model for the irradiance probability density function of a laser beam propagating through turbulent media, " Optical engineering, vol. 40, no. 8, pp. 1554-1562, 2001.
E. Jakeman and P. Pusey, "Significance of k distributions in scattering experiments, " Physical Review Letters, vol. 40, no. 9, p. 546, 1978.
J. H. Churnside and C. M. McIntyre, "Signal current probability distribution for optical heterodyne receivers in the turbulent atmosphere. 1: Theory, " Applied optics, vol. 17, no. 14, pp. 2141-2147, 1978.
N. Perlot, "Turbulence-induced fading probability in coherent optical communication through the atmosphere, " Applied optics, vol. 46, no. 29, pp. 7218-7226, 2007.
A. Belmonte and J. M. Kahn, "Performance of synchronous optical receivers using atmospheric compensation techniques, " Optics express, vol. 16, no. 18, pp. 14 151-14 162, 2008.
V. W. Chan, "Free-space optical communications, " Journal of Lightwave technology, vol. 24, no. 12, pp. 4750-4762, 2006.
F. Moll and M. Knapel, "Free-space laser communications for satellite downlinks: Measurements of the atmospheric channel, " Proceedings of IAC2011, 2011.
D. Giggenbach, F. Moll, and N. Perlot, "Optical communication experiments at dlr, " Journal of the National Institute of Information and Communications Technology, vol. 59, no. 1/2 March/June 2012, pp. 125-134, 2012.
S. Schaefer, M. Gregory, and W. Rosenkranz, "Numerical investigation of a free-space optical coherent communication system based on optical phase-locked loop techniques for highspeed, " in Photonic Networks; 16. ITG Symposium. VDE, 2015, pp. 1-6.
T. Ando, E. Haraguchi, K. Tajima, Y. Hirano, T. Hanada, and S. Yamakawa, "Coherent homodyne receiver with a compensator of doppler shifts for inter orbit optical communication, " in Free-Space Laser Communication Technologies XXIII, vol. 7923. International Society for Optics and Photonics, 2011, p. 79230J.
M. A. Khalighi and M. Uysal, "Survey on free space optical communication: A communication theory perspective, " IEEE Communications Surveys & Tutorials, vol. 16, no. 4, pp. 2231-2258, 2014.
M. Barozzi, A. Vannucci, and D. Sperti, "Lossless polarization attraction simulation with a novel and simple counterpropagation algorithm for optical signals, " Journal of the European Optical Society-Rapid publications, vol. 7, Oct 2012.
M. Barozzi and A. Vannucci, "Performance characterization and guidelines for the design of a counter-propagating nonlinear lossless polarizer, " J. Opt. Soc. Am. B, vol. 30, no. 12, pp. 3102-3110, Dec 2013.
-, "Dynamics of lossless polarization attraction, " Photon. Res., vol. 3, no. 5, pp. 229-233, Oct 2015.
L. G. Kazowsky, S. Benedetto, and A. Willner, Optical Fiber Communication Systems. Norwood, MA: Artec House, 1996.
H. Meyr, M. Oerder, and A. Polydoros, "On sampling rate, analog prefiltering, and sufficient statistics for digital receivers, " IEEE Trans. Commun., vol. 42, pp. 3208-3214, Dec. 1994.
A. Barbieri, D. Fertonani, and G. Colavolpe, "Improving the spectral efficiency of linear modulations through time-frequency packing, " in Proc. IEEE International Symposium on Information Theory, Toronto, Canada, Jul. 2008, pp. 2742-2746.
G. Colavolpe and T. Foggi, "Next-generation long-haul optical links: Higher spectral efficiency through time-frequency packing, " in Proc. IEEE Global Telecommun. Conf., vol. 1, Dec. 2013.
J. E. Mazo, "Faster-than-Nyquist signaling, " Bell System Tech. J., vol. 54, pp. 1450-1462, Oct. 1975.
N. Merhav, G. Kaplan, A. Lapidoth, and S. Shamai, "On information rates for mismatched decoders, " IEEE Trans. Inform. Theory, vol. 40, no. 6, pp. 1953-1967, Nov. 1994.
D. M. Arnold, H.-A. Loeliger, P. O. Vontobel, A. Kavcíc, and W. Zeng, "Simulation-based computation of information rates for channels with memory, " IEEE Trans. Inform. Theory, vol. 52, no. 8, pp. 3498-3508, Aug. 2006.
L. R. Bahl, J. Cocke, F. Jelinek, and J. Raviv, "Optimal decoding of linear codes for minimizing symbol error rate, " IEEE Trans. Inform. Theory, vol. 20, pp. 284-287, Mar. 1974.
M. Brechtelsbauer, D. Giggenbach, J. Horwath, M. Knapek, N. Perlot, K. Arai, T. Jono, Y. Koyama, N. Kura, and K. Ohinata, "Report on dlrjaxa joint experiment: The kirari optical downlink to oberpfaffenhofen (kiodo), " Japan Aerospace Exploration Agency (JAXA), Tech. Rep., 2007.