OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 18250–18262

On the communication over strong atmospheric turbulence channels by adaptive modulation and coding

Ivan B. Djordjevic and Goran T. Djordjevic  »View Author Affiliations

Optics Express, Vol. 17, Issue 20, pp. 18250-18262 (2009)

View Full Text Article

Enhanced HTML    Acrobat PDF (314 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



The free-space optical (FSO) communications can provide any connectivity need at high-speed. However, an optical wave propagating through the atmosphere experiences the variation in amplitude and phase due to scintillation. To enable high-speed communication over strong atmospheric turbulence channels, we propose to transmit the encoded sequence over both FSO and wireless channels, feedback channel state information of both channels by RF-feedback, and adapt powers and rates so that total channel capacity is maximized. The optimum power adaptation policy maximizing total channel capacity is derived. We show significant spectral efficiency performance improvement by employing this approach. We further show that deep fades in the order 35 dB and above can be tolerated by proposed hybrid communication scheme.

© 2009 OSA

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4080) Fiber optics and optical communications : Modulation
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: July 6, 2009
Revised Manuscript: August 28, 2009
Manuscript Accepted: September 10, 2009
Published: September 25, 2009

Ivan B. Djordjevic and Goran T. Djordjevic, "On the communication over strong atmospheric turbulence channels by adaptive modulation and coding," Opt. Express 17, 18250-18262 (2009)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. L. C. Andrews, and R. L. Philips, Laser Beam Propagation through Random Media (SPIE Press, 2005).
  2. I. B. Djordjevic, B. Vasic, and M. A. Neifeld, “LDPC coded OFDM over the atmospheric turbulence channel,” Opt. Express 15, 6332–6346 (2007). [CrossRef]
  3. I. B. Djordjevic, S. Denic, J. Anguita, B. Vasic, and M. A. Neifeld, “LDPC-coded MIMO optical communication over the atmospheric turbulence channel,” J. Lightwave Technol. 26(5), 478–487 (2008). [CrossRef]
  4. J. A. Anguita, M. A. Neifeld, B. Hildner, and B. Vasic, “Raptor codes for the temporally correlated FSO channel,” submitted for publication.
  5. S. Denic, I. B. Djordjevic, J. Anguita, B. Vasic, and M. A. Neifeld, “Information theoretic limits for free-space optical channels with and without memory,” J. Lightwave Technol. 26(19), 3376–3384 (2008). [CrossRef]
  6. A. Goldsmith, Wireless Communications (Cambridge University Press, Cambridge 2005).
  7. A. Goldsmith and S.-G. Chua, “Adaptive coded modulation for fading channels,” IEEE Trans. Commun. 46(5), 595–602 (1998). [CrossRef]
  8. M. D. Yacoub, “The α-μ distribution: a general fading distribution,” in Proc. IEEE Int. Symp. PIMRC, vol. 2, pp. 629–633, 2002.
  9. M. D. Yacoub, “The α-μ distribution: a physical fading model for the Stacy distribution,” IEEE Trans. Vehicular Technol. 56(1), 27–34 (2007). [CrossRef]
  10. M. A. Al-Habash, L. C. Andrews, and R. L. Phillips, “Mathematical model for the irradiance probability density function of a laser beam propagating through turbulent media,” Opt. Eng. 40(8), 1554–1562 (2001). [CrossRef]
  11. J. A. Anguita, I. B. Djordjevic, M. A. Neifeld, and B. V. Vasic, “Shannon capacities and error–correction codes for optical atmospheric turbulent channels,” J. Opt. Netw. 4(9), 586–601 (2005). [CrossRef]
  12. M. P. C. Fossorier, “Quasi-cyclic low-density parity-check codes from circulant permutation matrices,” IEEE Trans. Inf. Theory 50(8), 1788–1793 (2004). [CrossRef]
  13. H. Xiao-Yu, E. Eleftheriou, D.-M. Arnold, and A. Dholakia, “Efficient implementations of the sum-product algorithm for decoding of LDPC codes,” In Proc. IEEE Globecom 2001, vol. 2, pp. 1036–1036E, 2001.
  14. T. Mizuochi, Y. Miyata, T. Kobayashi, K. Ouchi, K. Kuno, K. Kubo, K. Shimizu, H. Tagami, H. Yoshida, H. Fujita, M. Akita, and K. Motoshima, “Forward error correction based on block turbo code with 3-bit soft decision for 10-Gb/s optical communication systems,” IEEE J. Sel. Top. Quantum Electron. 10(2), 376–386 (2004). [CrossRef]
  15. A. A. Farid, and S. Hranilovic, “Upper and lower bounds on the capacity of wireless optical intensity channels,” in Proc. ISIT 2007, pp. 2416–2420, Nice, France, June 24-June 29, 2007.

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.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited