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An approach to investigating the feasibility of free-space optical communication technology deployment under scintillation effects

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Języki publikacji
EN
Abstrakty
EN
Local weather conditions have an impact on the availability of free-space optical (FSO) communication. The variation in meteorological parameters, such as temperature, humidity, and wind speed, leads to variations of the refractive index along the transmission path. These refractive index inhomogeneities produced by atmospheric turbulence induce optical turbulence which is responsible for random fluctuations in the intensity of the laser beam that carries the signal (irradiance) called scintillations that can significantly degrade the performance of FSO systems. This paper aims to investigate the feasibility of deploying FSO communication technology under scintillation effects in any urban region and atmospheric environment. To achieve that, firstly by utilizing the Hufnagel-Vally day with the Sadot and Kopeika models together, the scintillation strength for a specified region, Sulaimani City in north-eastern Iraq as an example, has been estimated through the calculation of the refractive index structure parameter (Cn²) over a period of 10 years and it was found to be at the strong turbulence level. Secondly, from the same estimated parameter, the scintillation attenuation of the signal carrying the laser beam intensity can be calculated to investigate the feasibility of FSO communication using Optysistem-7 software. The optimal link distance for northeastern Iraq (Sulaimani City) has been found to be within the limit of about 5.5 km. Analysing the max. Q-factor, bit-error rate and signal to noise ratio for an average of 120 months between 2013-2022 assessed the best and worst seasons for FSO.
Rocznik
Strony
art. no. e147037
Opis fizyczny
Bibliogr. 18 poz., rys., tab., wykr.
Twórcy
  • Physics Department, College of Education, University of Sulaimani, Sulaimani, Kurdistan Region / Iraq
Bibliografia
  • [1] Rashidi, F. & Semakuwa, S. Analysis of rain effect in free space optical communication under nrz modulation in two regions of Tanzania. Int. J. Adv. Eng. Nanotechnol. 1, 13-16 2014. https://www.ijaent.org/wpcontent/uploads/papers/v1i10/J02150911014.pdf.
  • [2] Alkholidi, A. & Altowij, K. Effect of Clear Atmospheric Turbulence on Quality of Free Space Optical Communications in Western Asia. in Optical Communications Systems (ed. Das, N.) 41-74 (IntechOpen, 2012). https://doi.org/10.5772/35186.
  • [3] Sony, K., Kurella, S., Mallisetty, R., San Vardhan, B. & Datta, M. S. S. Analysis of FSO system under clear and rain conditions. Int. J. Recent Technol. Eng. 7, 924-928 (2019). https://www.ijrte.org/wpcontent/uploads/papers/v7i6/F2546037619.pdf.
  • [4] Al Naboulsi, M, Sizun H. & de Fornel, F. Propagation of optical and IR waves in the atmosphere. Environ. Sci. 7, 01729 (2005). https://www.ursi.org/proceedings/procGA05/pdf/F01P.7(01729).pdf.
  • [5] Twati, M., Badi, M. & Adam, F. Analysis of rain effects on free space optics based on data measured in the Libyan climate. Int. J. Inf. Electron. Eng. 4, 469-472 (2014). https://doi.org/10.7763/IJIEE.2014.V4.485.
  • [6] Vitásek, J. et al. Atmospheric Turbulences in Free Space Optics Channel. in 34th International Conference on Telecommunications and Signal Processing (TSP) 104-107 (IEEE, 2011). https://doi.org/10.1109/TSP.2011.6043763.
  • [7] Optical Communication Systems (ed. Das, N.) (IntechOpen, 2012), https://www.intechopen.com/books/1339.
  • [8] Ali, M. A. A. Atmospheric turbulence effect on FSO communications. Int. J. Emerg. Technol. Comput. Appl. Sci. 5, 345-351 (2013). http://iasir.net/IJETCASpapers/IJETCAS13-364.pdf.
  • [9] Motlagh, A., Ahmadi, V., Ghassemlooy, Z. & Abedi, K. The Effect of Atmospheric Turbulence on the Performance of the Free Space Optical Communications. in Proceedings of the 6th International Symposium on Communication Systems, Networks and Digital Signal Processing 540-543 (IEEE, 2008). https://doi.org/10.1109/CSNDSP.2008.4610725.
  • [10] Tunick, A. Optical turbulence parameters characterized via optical measurements over a 2.33 km free-space laser path. Opt. Express 16, 14645-14654 (2008). https://doi.org/10.1364/OE.16.014645.
  • [11] Sadot, D. & Kopeika, N. Forecasting optical turbulence strength on the basis of macroscale meteorology and aerosols: models and validation. Proc. SPIE 31, 200-212 (1992). https://doi.org/10.1117/12.56059.
  • [12] Demir, P. & Yılmaz, G. The investigation of SNR for Free Space Optical Communication Under Turbulence. Karaelmas Sci. Eng. J. 8, 438-445 (2018). https://dergipark.org.tr/tr/download/article-file/1329012.
  • [13] Canuet, L. Atmospheric turbulence profile modeling for satelliteground laser communication. (Universitat Politècnica de Catalunya, 2014).
  • [14] Krishnan, P. Performance Analysis of FSO Systems over Atmospheric Turbulence Channel for Indian Weather Conditions. in Turbulence and related phenomena (ed. Barillé, R.) ch 2 (IntechOpen, 2019). https://doi.org/10.5772/intechopen.80275.
  • [15] Grover, M. Singh, P. & Kaur, P. Mitigation of scintillation effects in WDM FSO system using multibeam technique. J. Telecommun. Inf. Technol. 2, 69-74 (2017). https://jtit.pl/jtit/article/view/666/666.
  • [16] Altowij, K. S., Alkholidi, A. & Hammam, H. Effect of clear atmospheric turbulence on quality of free space optical communications in Yemen. Front. Optoelectron. China 3, 423-428. 2010. https://doi.org/10.1007/s12200-010-0123-8.
  • [17] Maurya, V. Design and Performance Analysis of VLC System with Noise Mitigation. Malaviya National Institute of Technology Jaipur http://idr.mnit.ac.in/handle/123456789/554 (2019).
  • [18] El-Mokadem, E., Tawfik, N., Aly, M. & El-Deeb, W. Design and performance evaluation of vehicular visible light communication system under different weather conditions and system parameters. Opto-Electron. Rev. 31, e145580 (2023). https://doi.org/10.24425/opelre.2023.145580.
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4b803064-0662-454e-92a4-fc226ef59621
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