Capacity Estimation of Optical Wireless Communication Systems over Moderate to Strong Turbulence Channels

  • Nistazakis, Hector E. (Department of Electronics, Computers, Telecommunications, and Control, Faculty of Physics, University of Athens) ;
  • Tombras, George S. (Department of Electronics, Computers, Telecommunications, and Control, Faculty of Physics, University of Athens) ;
  • Tsigopoulos, Antreas D. (Hellenic Naval Academy, Sector of Battle Systems, Naval Operations, Sea Studies, Navigation, Electronics and telecommunication) ;
  • Karagianni, Evangelia A. (Hellenic Naval Academy, Sector of Battle Systems, Naval Operations, Sea Studies, Navigation, Electronics and telecommunication) ;
  • Fafalios, Michael E. (Hellenic Naval Academy, Sector of Battle Systems, Naval Operations, Sea Studies, Navigation, Electronics and telecommunication)
  • Published : 2009.08.31

Abstract

Optical wireless communication (OWC) systems are rapidly gaining popularity as effective means of transferring data at high rates over short distances. OWC facilitates rapidly deployable, lightweight, high-capacity communication without licensing fees and tariffs. Nevertheless, the performance of this new technology depends strongly on the atmospheric conditions and the characteristics of the link. In this work, we study the influence of these parameters on both the average (ergodic) capacity and the outage capacity of an OWC system over moderate to strong turbulence channels modeled by gamma-gamma distribution. Moreover, we compare the results that we obtain estimating the average and outage capacities.

Keywords

References

  1. D. Kedar and S. Arnon. "Urban optícal wireless communication networks: The main challenges and possible solutions," IEEE Commun. Mag. , pp S1-S7. 2004
  2. S. Amon, "Optical wireless communications," Encycl. Opt. Eng. , Marcel Dekker Inc. New York, pp. 1866-1886, 2003
  3. A. K. Majumdar, "Free-space laser communication pelformance in the at mospheric channel," J. Opt. Fiber Commun. Research. vol.2, pp. 345-396. 2005 https://doi.org/10.1007/s10297-005-0054-0
  4. L. C. Andrews, R. L. Phillips, and C. Y. Hopen, Laser Beam Scintillation with Applications. SPIE Optical Engineering Press, Bellingham, WA, 2006
  5. H. G. Sandalidis and T. A. Tsiftsis "Olltage probability and ergodic capacity of free-space optical links over strong turblllence," Ellectron. Lett., vol. 44, no.1, pp. 46-47, Jan.2008 https://doi.org/10.1049/el:20082495
  6. T. A. Tsiftsis, H. G. Sandalidis, G. K. Karagiannidis, and M. Uysal, "Optical wireless links with spatial diversity over strong atrnospheric turbulence channels," lEEE Trans. Wireless Comunn., vol. 8, no. 2, pp. 951-957, 2009 https://doi.org/10.1109/TWC.2009.071318
  7. F. Lazarakis, G. S. Tombras, and K. Dangakis, "Average channel capacity in a mobile radio environment with Rician statistics," IEICE Trans. Commurn., vol. E77-B. no. 7, pp. 971-977, July 1994
  8. N. C. Sagias, G. S. Tombras. and G. K. Karagiannidis, "New results, for the Shannon channel capacity in generalized fading channels," IEEE Commun. Lett., vol. 9, no.2 pp. 97-99, Feb. 2005 https://doi.org/10.1109/LCOMM.2005.02031
  9. H. E. Nistazakis, G. S. Tombras A. D. Tsigopoulos, E. A. Karagianni, and M. E. Fafalios "Average capacity of wireless optical communication systems over gamma gamma atmospheric turbulence channels," in Proc. IEEE MTT-S, Atlanta USA, 2008, pp. 1561-1564
  10. M. Uysal, J. (Tiffany) Li, and M. Yu, "Error Tate pelformance analysis of coded free-space optical links over gamma-gamma atmospheric turbulence channcls," IEEE Trans. Wireless Commun., vol. 5, no. 6, pp. 1229-1233, June 2006 https://doi.org/10.1109/TWC.2006.1638639
  11. M.A. AI-Habash. L. C. Andrews, and R. L. Phillips, "Mathematical model for the irradiance PDF of a laser beam propagating throllgh turbulent me dia,"Opt. Eng., vol. 40, no. 8, pp. 1554-1562, 2001 https://doi.org/10.1117/1.1386641
  12. S. Fllrrer, P. Coronel, and D. Dahlhaus,"Simple ergodic and olltage capacity expressions for correluted diversity Ricean fading channels," IEEE Trans. Wireless Commun., vol. 5, no. 7, pp. 1606-1609, July 2006 https://doi.org/10.1109/TWC.2006.1673068
  13. A. A. Farid and S. Hranilovic, "Outage capacity optimization for free space optical links with pointing errors:' lEEE/OSA J. Lightwave Technol., vol. 25, no. 7, pp. 1702-1710, July 2007 https://doi.org/10.1109/JLT.2007.899174
  14. X. Zhu and J. M, Kahn, "Free-space optical communications through atmospheric turbulence channels," IEEE Trans. Commun., vol. 50, no. 8, pp.1293-1300, AUG. 2002 https://doi.org/10.1109/TCOMM.2002.800829
  15. V. S.Adamchik and O. I. Marichev, "The algorithm for calculating integrals of hypergeometric type function and its realization in reduce system," in proc. International Conference on Symbolic and Algebraic Computation, Tokyo. Japan, 1990, pp.212-224