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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 15 — Jul. 20, 2009
  • pp: 12601–12611

Capacity of coherent free-space optical links using diversity-combining techniques

Aniceto Belmonte and Joseph M. Kahn  »View Author Affiliations


Optics Express, Vol. 17, Issue 15, pp. 12601-12611 (2009)
http://dx.doi.org/10.1364/OE.17.012601


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Abstract

We study the performance of diversity combining techniques applied to synchronous laser communication through the turbulent atmosphere. We assume that a single information-bearing signal is transmitted over two or more statistically independent fading channels, and that the multiple replicas are combined at the receiver to improve detection efficiency. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator shot noise. We study the effect of various parameters, including the ratio of receiver aperture diameter to wavefront coherence diameter, the scintillation index, and the number of independent diversity branches combined at the receiver. We consider both maximal-ratio combining (MRC) and selective combining (SC) diversity schemes. We derive expressions for the outage Shannon capacity, thus placing upper bounds on the spectral efficiency achievable using these techniques.

© 2009 OSA

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: May 13, 2009
Revised Manuscript: July 3, 2009
Manuscript Accepted: July 3, 2009
Published: July 20, 2009

Citation
Aniceto Belmonte and Joseph M. Kahn, "Capacity of coherent free-space optical links using diversity-combining techniques," Opt. Express 17, 12601-12611 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-15-12601


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References

  1. D. L. Fried, “Optical heterodyne detection of an atmospherically distorted signal wave front,” Proc. IEEE 55(1), 57–77 (1967). [CrossRef]
  2. J. Proakis, and M. Salehi, Digital Communications, (Mc Graw-Hill, 2007).
  3. A. Belmonte and J. Khan, “Performance of synchronous optical receivers using atmospheric compensation techniques,” Opt. Express 16(18), 14151–14162 (2008). [CrossRef]
  4. A. Belmonte and J. M. Kahn, “Capacity of coherent free-space optical links using atmospheric compensation techniques,” Opt. Express 17(4), 2763–2773 (2009). [CrossRef]
  5. S. Haas and J. H. Shapiro, “Capacity of wireless optical communications,” IEEE J. Sel. Areas Comm. 21(8), 1346–1357 (2003). [CrossRef]
  6. E. J. Lee and V. W. S. Chan, “Part 1: optical communication over the clear turbulent atmospheric channel using diversity,” J. Select. Areas Commun. 22(9), 1896–1906 (2004). [CrossRef]
  7. 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(8), 1402–1412 (2005). [CrossRef]
  8. J. A. Anguita, I. B. Djordjevic, M. 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]
  9. I. B. Djordjevic, B. Vasic, and M. A. Neifeld, “Multilevel coding in free-space optical MIMO transmission with q-ary PPM over the atmospheric turbulence channel,” IEEE Photon. Technol. Lett. 18(14), 1491–1493 (2006). [CrossRef]
  10. N. Letzepis, I. Holland, and W. Cowley, “The Gaussian free space optical MIMO channel with Q-ary pulse position modulation,” IEEE Trans. Wirel. Comm. 7(5), 1744–1753 (2008). [CrossRef]
  11. K. Chakraborty, S. Dey, and M. Franceschetti, “Outage capacity of MIMO Poisson fading channels,” IEEE Trans. Inf. Theory 54(11), 4887–4907 (2008). [CrossRef]
  12. N. Cvijetic, S. G. Wilson, and M. Brandt-Pearce, ““Performance bounds for free-space optical MIMO systems with APD receivers in atmospheric turbulence,” IEEE,” J. Select. Areas. Commun. 26(3), 3–12 (2008). [CrossRef]
  13. C. E. Shannon, “A mathematical theory of communications,” Bell Syst. Tech. J. 27, 379–423, 623–656 (1948).
  14. R. M. Gagliardi, and S. Karp, Optical Communications (John Wiley & Sons, 1995).
  15. J. W. Strohbehn, T. Wang, and J. P. Speck, “On the probability distribution of line-of-sight fluctuations of optical signals,” Radio Sci. 10(1), 59–70 (1975). [CrossRef]
  16. R. J. Noll, “Zernike polynomials and atmospheric turbulence,” J. Opt. Soc. Am. 66(3), 207–211 (1976). [CrossRef]
  17. J. D. Parsons, “Diversity techniques in communications receivers,” in Advanced Signal Processing, D. A. Creasey, ed. (Peregrinus, 1985), Chap. 6.
  18. N. Kong, T. Eng, and L. B. Milstein, “A selection combining scheme for rake receivers,” in Proc. ICUPC, Japan, 1995, pp. 426–429.

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