OSA's Digital Library

Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 10 — Oct. 1, 2011
  • pp: 780–789

Outage Capacity for MISO Intensity-Modulated Free-Space Optical Links With Misalignment

Ahmed A. Farid and Steve Hranilovic  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 3, Issue 10, pp. 780-789 (2011)

View Full Text Article

Enhanced HTML    Acrobat PDF (337 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



The outage capacity of slow-fading free-space optical channels is analyzed for a multiple-input/single-output configuration in the presence of atmospheric and misalignment fading. A spatial repetition code is considered at the transmitter and a closed-form expression for the outage capacity is developed. In addition, a simple asymptotic closed-form expression is derived at high signal-to-noise ratio. Two methods are considered for system design using the derived outage capacity results with different beam configurations. The outage capacity is optimized over a predetermined set using numerical techniques. Using the asymptotic form of the outage capacity, however, a closed form for the optimum beamwidth is derived. A comparison of simulation results in both cases gives very similar performance indicating the effectiveness of the asymptotic form to provide a near-optimum expression for the beamwidth.

© 2011 OSA

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Research Papers

Original Manuscript: May 19, 2011
Revised Manuscript: August 12, 2011
Manuscript Accepted: August 12, 2011
Published: September 14, 2011

Ahmed A. Farid and Steve Hranilovic, "Outage Capacity for MISO Intensity-Modulated Free-Space Optical Links With Misalignment," J. Opt. Commun. Netw. 3, 780-789 (2011)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. J. M. Kahn and J. R. Barry, "Wireless infrared communications," Proc. IEEE 85, 265‒298 (1997). [CrossRef]
  2. X. Zhu and J. Kahn, "Free space optical communication through atmospheric turbulence channels," IEEE Trans. Commun. 50, 293‒1300 (2002).
  3. T. A. Tsiftsis, H. G. Sandalidis, G. K. Karagiannidis, and M. Uysal, "Optical wireless links with spatial diversity over strong atmospheric turbulence channels," IEEE Trans. Wireless Commun. 8, 951‒957 (2009). [CrossRef]
  4. M. Razavi and J. H. Shapiro, "Wireless optical communications via diversity reception and optical preamplification," IEEE Trans. Wireless Commun. 4, 975‒983 (2005). [CrossRef]
  5. S. M. Haas and J. H. Shapiro, "Capacity of wireless optical communications," IEEE J. Sel. Areas Commun. 21, 1346‒1356 (2003). [CrossRef]
  6. S. G. Wilson, M. Brandt-Pearce, Q. Cao, and J. H. Leveque, "Free-space optical MIMO transmission with Q-ary PPM," IEEE Trans. Commun. 53, 1402‒1412 (2005). [CrossRef]
  7. fSONA Optical Wireless [Online]. Available: http://www.fsona.com
  8. A. A. Farid and S. Hranilovic, "Diversity gain and outage probability for MIMO free-space optical links with misalignment," IEEE Trans. Commun. (in press).
  9. A. A. Farid and S. Hranilovic, "Diversity gains for MIMO wireless optical intensity channels with atmospheric fading and misalignment," Proc. IEEE GlobeCom, Dec. 2010, Miami, FL, USA, pp. 1015‒1019.
  10. J. A. Anguita, M. A. Neifeld, and B. V. Vasic, "Spatial correlation and irradiance statistics in a multiple-beam terrestrial free-space optical communication link," J. Appl. Opt. 46, 6561‒6571 (2007). [CrossRef]
  11. S. Arnon, "Effects of atmospheric turbulence and building sway on optical wireless communication systems," Opt. Lett. 28, 129‒131 (2003). [CrossRef] [PubMed]
  12. A. A. Farid and S. Hranilovic, "Outage capacity optimization for free-space optical links with pointing errors," J. Lightwave Technol. 25, 1702‒1710 (2007). [CrossRef]
  13. MRV Communications Inc. [Online]. Available: http://www.mrv.com
  14. S. M. Navidpour, M. Uysal, and M. Kavehrad, "BER performance of free-space optical transmission with spatial diversity," IEEE Trans. Wireless Commun. 6, 2813‒2819 (2007). [CrossRef]
  15. C. E. Shannon, "A mathematical theory of communication," Bell Syst. Tech. J. 27, 379‒423 (1948).
  16. L. C. Andrews, Special Functions of Mathematics for Engineers, McGraw-Hill, New York, USA, 1992.
  17. D. Bushuev and S. Arnon, "Analysis of the performance of a wireless optical multi-input to multi-output communication system," J. Opt. Soc. Am. A 23, 1722‒1730 (2006). [CrossRef]
  18. I. Korevaar, I. Kim, and B. McArthur, "Atmospheric propagation characteristics of highest importance to commercial free space optics," Proc. SPIE 4976, 1‒12 (2003).
  19. S. C. Schwartz and Y. S. Yeh, "On the distribution function and moments of power sums with log-normal components," Bell Syst. Tech. J. 61, 1441‒1462 (1982).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited