Mitigation of Fog and Rain Effects in Free-Space Optical Transmission Using Combined Diversity

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 380)

Abstract

Free-Space Optics (FSO) have been emerging communication field because of several advantages like cost-effective, higher bandwidth, and license free. It is basically line of sight communication and more suitable for last mile connectivity. Signal degradation occurs mostly due to atmospheric interference like rain, fog, etc. Diversity is an efficient solution to overcome these effects. In this paper, we have applied the concept of combined diversity (spatial and wavelength) with help of two receiver antenna to mitigate effects of fog and rain attenuation over transmission. An Equal Gain Combining for array gain enhancement applied at the receiver side. Results also demonstrated improvement in BER performance under strong turbulence.

Keywords

Diversity Fog attenuation Rain attenuation 

References

  1. 1.
    Henniger, H., Wilfert, O.: An introduction to free space optical communication. Radio Eng. 19(2), 203–213 (2010)Google Scholar
  2. 2.
    Parikh, J.: Study on stastical models of atmospheric channel for FSO communication. In: International Conference on Current Trends in Technology. Nuicone (2011)Google Scholar
  3. 3.
    Zhu, X., Kahn, J.M.: Free-space optical communication through atmospheric turbulence channels. IEEE Trans. Commun. 50(8) (2002)Google Scholar
  4. 4.
    Nistazakis, H.E., Assimakopoulos, V.D., Tombras, G.S.: Performance estimation of free space optical links over negative exponential atmospheric turbulence channels. Optic 122, 2191–2194 (2011)Google Scholar
  5. 5.
    Pesek, J., Fise, O., Svoboda, J., Schejbal, V.: Modeling of 830 nm FSO link attenuation in fog or wind turbulence. Radio Eng. 19(2), 237–241 (2010)Google Scholar
  6. 6.
    Naboulsi, S., de Fournel, F.: Fog attenuation prediction for optical and infrared waves. Optical Eng. 43(2), 319–329 (2004)Google Scholar
  7. 7.
    Zvanovec, S.: Diversity statistics of free space optical links affected by rain. PIERS ONLINE 7(7) (2011)Google Scholar
  8. 8.
    Suriza, A.Z., Islam md. rafiqul, Wajdi al-khateeb, Naji, A.W.: Analysis of rain effects on terrestrial FSO based on data measured in tropical climate. IIMU Eng. J 12(5) (2011)Google Scholar
  9. 9.
    Uysal, M., Navidpour, S.M., Li, J.T.: Error rate performance of coded free-space optical links over strong turbulence channels. IEEE Commun. Lett. 8, 635–637 (2004)CrossRefGoogle Scholar
  10. 10.
    Zhu, X., Kahn, J.M.: Markov Chain model in maximum- likelihood sequence detection for free-space optical communication through atmospheric turbulence channels. IEEE Trans. Commun. 51(3), 509–516 (2003)CrossRefGoogle Scholar
  11. 11.
    Stassinakis, A.N., Hanias, M.P., Nistazakis, H.E., Tombras, G.S.: Evaluation of outage probability for time diversity schemes in free space optical systems over I-K atmospheric turbulence channels. In: 2nd Pan-Hellenic Conference on Electronics and Telecommunications—PACET΄12 (2012)Google Scholar
  12. 12.
    Tsiftsis, T.A., Sandalidis, H.G., Karagiannidis, G.K., Uysal, M.: Optical wireless links with spatial diversity over strong atmospheric turbulence channels. IEEE Trans. Wirel. Commun. 8(2), 951–958 (2009)CrossRefGoogle Scholar
  13. 13.
    Choi, C., Shoji, Y., Ogawa, H.: Analysis of receiver space diversity gain for millimeter-wave self-heterodyne transmission techniques under two-path channel environments”, TU4A-3Google Scholar
  14. 14.
    Wainright, E., Hazem, H.R., Sluss, J.J.: Wavelength diversity in free-space optics to alleviate fog effects in free-space communication technologies. In: XVII, Proceedings of SPIE, vol. 5712, pp. 110–119Google Scholar
  15. 15.
    Zuev, V.E.: Spectroscopy of atmospheric gases (spectral databases). Institute of Atmospheric Optics SB RAS. Retrieved August 8, (2012)Google Scholar
  16. 16.
    Specific attenuation model for rain for use in prediction methods. Recommendation ITU-R P. 838-1, 2005Google Scholar
  17. 17.
    Anguita, J.A., Cisternas, J.E.: Experimental evaluation of transmitter and receiver diversity in a terrestrial FSO link. IEEE Globecom 2010 Workshop on Optical Wireless Communications (2010)Google Scholar

Copyright information

© Springer India 2016

Authors and Affiliations

  1. 1.Institute of TechnologyNirma UniversityAhmedabadIndia

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