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Comparison of NRZ, RZ-OOK Modulation Formats for FSO Communications under Fog Weather Condition

by Mazin Ali A. Ali
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 108 - Number 2
Year of Publication: 2014
Authors: Mazin Ali A. Ali
10.5120/18885-0164

Mazin Ali A. Ali . Comparison of NRZ, RZ-OOK Modulation Formats for FSO Communications under Fog Weather Condition. International Journal of Computer Applications. 108, 2 ( December 2014), 29-34. DOI=10.5120/18885-0164

@article{ 10.5120/18885-0164,
author = { Mazin Ali A. Ali },
title = { Comparison of NRZ, RZ-OOK Modulation Formats for FSO Communications under Fog Weather Condition },
journal = { International Journal of Computer Applications },
issue_date = { December 2014 },
volume = { 108 },
number = { 2 },
month = { December },
year = { 2014 },
issn = { 0975-8887 },
pages = { 29-34 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume108/number2/18885-0164/ },
doi = { 10.5120/18885-0164 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:41:58.470456+05:30
%A Mazin Ali A. Ali
%T Comparison of NRZ, RZ-OOK Modulation Formats for FSO Communications under Fog Weather Condition
%J International Journal of Computer Applications
%@ 0975-8887
%V 108
%N 2
%P 29-34
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this paper, the performance of an FSO wireless communications system is theoretically analyzed, using NRZ, RZ-OOK modulation formats and a Si PIN photodiodes receiver over fog weather conditions. Based on different fog models for optical beam propagation horizontally at 850 nm1550nm on an FSO, the visibility of weather and power of the transmitter under fog weather are analyzed. The characteristics of bit error rate BER for NRZ and RZ-OOK optical modulation formats are studied under different fog models. Simulation results indicate that the performance of 1550nmis more suited for an FSO communication system. On the other hand, we discuss the suitability of fog models under these modulation formats.

References
  1. Willebrand. H, Ghuman, B. S. , . Free-Space Optics: Enabling Optical connectivity in today's networks, SAMS Publishing, Indianapolis, 2002.
  2. Andrews, L. C. , . Fuild Guide to atmospheric optics, SPIE press, USA, 2004.
  3. Miglant, R. , Singh, M. L. , performance evaluation of free space optical link using mid and far infrared wavelengths in turbulent atmospheric conditions, 4th international workshop on fiber optics in access network(FOAN), 2001.
  4. Kim, I. I. , McArthur, B. , Korevaar E. , comparison of laser beam propagation at 785nm and 1550nm in fog and haze for optical wireless communications, Proc. SPIE, vol. 214, no. 2, 2001.
  5. Nadeem, F. , Javornik T. , Leitgeb, E. , Kvicera, V. , and Kandus, G. , continental fog attenuation empirical relationship from measured visibility data, journal of radioEngineering vol. 19, no. 4, 2010.
  6. Naboulsi, M. A. , Forne, F. D. , Sizun, H. , Gebhart, M. , Leitgeb, E. , Muhammed, S. S. , Flecker, B. and Chlestil, C. , measured and predicted light attenuation in dense coastal upslope fog at 650, 850, and 950 nm for free-space optics applications, journal of optical engineering, vol. 47, no. 3, 2008.
  7. Pesek, J. , Ijaz, M. , Ghassemlooy, Z. , Fiser, O. , Rajbhandsri, S. , measuring the fog attenuation in an indoor free space optical laboratory chamber, international conference on applied electronics, Czech republic, September, 2012.
  8. Majumdar, A. , Free-Space Laser Communications: Principles and Advanced, springer science+business media, LLC, 2008.
  9. Shaik, K. S. , Atmospheric propagation effects relevant to optical communication. TDA progress report, 1988.
  10. Hemati, H. , Deep space optical communications, in deep space communications and navigation series California, 2005.
  11. Bloom, S. , Korevaar, E. , Shuster, J. , and Willebrand, H. , understanding the performance of free-space optics, journal of networking, vol. 2, pp. 178-200, 2003.
  12. Fadhil, H. A. , Amphawan, A. H. , Shamsuddin, A. B. , Thanaa Hussein Abd, Hamza Al-Khafaji, M. R. , Aljunid, S. A. , and Nasim Ahmed, optimization of free space optics parameters: An optimum solution for bad weather conditions, Elsevier, Optik, vol. 124, 3969-3973, 2013.
  13. Kruse, P. W. , McGlauchlin, L. D. , and McQuistan, R. B. , Elements of infrared technology generation, transmission, and detection , Newyork: J. Wiley and Sons, 1962.
  14. Keiser, G. , optical fiber communications, McGraw-Hill Company, 2000.
  15. Kharraz, O. , Forsyth, D. , PIN and APD photodetector efficiencies in the longer wavelength range 1300-1500nm, Elsevier, Optik, vol. 124, pp. 2574-2576, 2013.
  16. Keiser, G. , optical essential communications, McGraw-Hill Company, 2004.
  17. Tyson, R. K. , Bit-Error Rate for free – space adaptive optics laser communications, Journal of Optical Society of America A, vol. 19, no. 4, pp. 753-758, 2002.
  18. Strickland, B. R. , Lavan, M. J. , Woodbridge, E. , and Chan, V. , Effects of fog on the bit -error rate of a free space laser communication system, journal of applied optics, vol. 38, pp. 424-431, 1999.
  19. Liu, N. , Zhong, W. D. , He, Y. , Heng, H. , and Cheng, T. H. , Comparison of NRZ and RZ modulations in laser intersatellite communication systems, proceedings of the 2008 international conference on advanced infocomm technology, Shezhen China, pp. 677, 2008.
  20. Andrews, L. C. , Philips, R. L. , Laser beam propagation through random media, 2nd edition, SPIE Optical Engineering Press, Bellingham, WA, 2005.
  21. Trisno, S. , design and analysis of advanced free space optical communication systems, Ph. D thesis, University of Maryland, 2006.
  22. Agrawal, G. P. , Fiber-Optic communication system, John Wiley and Sons, 4th edition, 2010.
Index Terms

Computer Science
Information Sciences

Keywords

FSO fog attenuation visibility bit error rate BER NRZ-OOK RZ-OOK.

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