OSA's Digital Library

Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 11 — May. 29, 2006
  • pp: 4625–4635

Nonlinear BCJR equalizer for suppression of intrachannel nonlinearities in 40 Gb/s optical communications systems

Ivan B. Djordjevic and Bane Vasic  »View Author Affiliations


Optics Express, Vol. 14, Issue 11, pp. 4625-4635 (2006)
http://dx.doi.org/10.1364/OE.14.004625


View Full Text Article

Enhanced HTML    Acrobat PDF (635 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A maximum a posteriori probability (MAP) symbol decoding supplemented with iterative decoding is proposed as an effective mean for suppression of intrachannel nonlinearities. The MAP detector, based on Bahl-Cocke-Jelinek-Raviv algorithm, operates on the channel trellis, a dynamical model of intersymbol interference, and provides soft-decision outputs processed further in an iterative decoder. A dramatic performance improvement is demonstrated. The main reason is that the conventional maximum-likelihood sequence detector based on Viterbi algorithm provides hard-decision outputs only, hence preventing the soft iterative decoding. The proposed scheme operates very well in the presence of strong intrachannel intersymbol interference, when other advanced forward error correction schemes fail, and it is also suitable for 40 Gb/s upgrade over existing 10 Gb/s infrastructure.

© 2006 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.4080) Fiber optics and optical communications : Modulation
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 22, 2006
Revised Manuscript: April 26, 2006
Manuscript Accepted: May 4, 2006
Published: May 29, 2006

Citation
Ivan B. Djordjevic and Bane Vasic, "Nonlinear BCJR equalizer for suppression of intrachannel nonlinearities in 40 Gb/s optical communications systems," Opt. Express 14, 4625-4635 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-11-4625


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. I. B. Djordjevic, and B. Vasic, "Constrained coding techniques for suppression of Intrachannel Nonlinear effects in high-speed optical transmission," J. Lightwave Technology 24, 411-419 (2006). [CrossRef]
  2. R.-J. Essiambre, B. Mikkelsen, and G. Raybon, "Intra-channel crossphase modulation and four-wave mixing in high-speed TDM systems," Electron. Lett. 18, 1576-1578 (1999). [CrossRef]
  3. M. J. Ablowitz, and T. Hirooka, "Resonant nonlinear intrachannel interactions in strongly dispersion-managed transmission systems," Opt. Lett. 24, 1750-1752 (2000). [CrossRef]
  4. X. Liu, X. Wei, A. H. Gnauck, C. Xu, and L. K. Wickham, "Suppression of interchannel four-wave-mixing-induced ghost pulses in high-speed transmissions by phase inversion between adjacent marker blocks," Opt. Lett. 27, 1177-1179 (2000). [CrossRef]
  5. P. V. Mamyshev, and N. A. Mamysheva, "Pulse-overlapped dispersion-managed data transmission and intrachannel four-wave mixing," Opt. Lett. 24, 1454 -1456 (1999). [CrossRef]
  6. N. Alic, and Y. Fainman, "Data-dependent phase coding for suppression of ghost pulses in optical fibers," IEEE Photon. Technol. Lett. 16, 1212-14 (2004). [CrossRef]
  7. J. H. Winters, "Equalization in coherent lightwave systems using a fractionally spaced equalizer," J. Lightwave Technol. 7, 813-815 (1989). [CrossRef]
  8. S. Kasturia and J. H. Winters, "Techniques for high-speed implementation of nonlinear cancellation," IEEE J. Sel. Areas Commun. 9, 711-717 (1991). [CrossRef]
  9. C. Xia, and W. Rosenkranz, "Performance enhancement for duobinary modulation through nonlinear electrical equalization," in Proc. 31st European Conference on Optical Communications (ECOC 2005), 2, 257-258 (2005).
  10. O. E. Agazzi, M. R. Hueda, H. S. Carrer, and D. E. Crivelli, "Maximum-likelihood sequence estimation in dispersive optical channels," J. Lightwave Technol. 23, 749-763 (2005). [CrossRef]
  11. N. Alić, G. Papen, R. Saperstein, L. Milstein, Y. Fainman, "Signal statistics and maximum likelihood sequence estimation in intensity modulated fiber optic links containing a single optical pre-amplifier," Opt. Express 13, 4568-4579 (2005). [CrossRef] [PubMed]
  12. C. Douillard, M. Jézéquel, C. Berrou, A. Picart, P. Didier, and A. Glavieux, "Iterative correction of intersymbol interference: turbo equalization’" Eur. Trans. Telecommun. 6, 507-511 (1995). [CrossRef]
  13. S. Song, A. C. Singer, and K.-M. Sung, "Soft input channel estimation for turbo equalization," IEEE Trans. Signal Process. 522885-2894 (2004). [CrossRef]
  14. B. M. Kurkoski, P. H. Siegel, and J. K. Wolf, "Joint Message-Passing decoding of LDPC codes and partial-response channels," IEEE Trans. Inf. Theory 48, 1410-1422 (2002). [CrossRef]
  15. L. R. Bahl, J. Cocke, F. Jelinek, and J. Raviv, "Optimal decoding of linear codes for minimizing symbol error rate," IEEE Trans. Inf. Theory,  IT-20, 284-287 (1974). [CrossRef]
  16. I. B. Djordjevic, and B. Vasic, "MacNeish-Mann theorem based iteratively decodable codes for optical communication systems," IEEE Commun. Lett. 8, 538-540 (2004). [CrossRef]
  17. I. B. Djordjevic, S. Sankaranarayanan, and B. Vasic, "Projective plane iteratively decodable block codes for WDM high-speed long-haul transmission systems," J. Lightwave Technol. 22, 695-702 (2004). [CrossRef]
  18. B. Vasic, I. B. Djordjevic, and R. Kostuk, "Low-density parity check codes and iterative decoding for long haul optical communication systems," J. Lightwave Technol. 21, 438-446 (2003). [CrossRef]
  19. J. Hagenauer and P. Hoeher, "A Viterbi algorithm with soft decision outputs and its applications," in Proc. IEEE GLOBECOM, 1680-1686 (1989).
  20. W. E. Ryan, "Concatenated convolutional codes and iterative decoding," in Wiley Encyclopedia of Telecommunications, J. G. Proakis, ed., (John Wiley and Sons, 2002).
  21. S. K. Chilappagari, S. Sankaranarayanan, and B. Vasic, "Error floors of LDPC codes on binary symmetric channel," accepted for presentation at IEEE Int. Conf. Comm. (ICC 2006), Istanbul, Turkey on 11 - 15 June 2006.
  22. B. Vasic, S. K. Chilappagari, and S. Sankaranarayanan, "Error floors of LDPC codes on binary symmetric channel," presented at the IEEE Comm. Theory Workshop, Park City, UT, June 13-15, 2005.
  23. T. Mizuochi et al., "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, 376-386 (2004). [CrossRef]
  24. M. Mansour, "Implementation of LDPC decoders," presented at the IEEE Comm. Theory Workshop, Park City, UT, June 13-15, 2005.
  25. T. Lee, "80+ Gb/s ETDM systems implementation: an overview of current technology," in Proc. OFC 2006, Paper no. OTuB3.
  26. A. Färbert, "Application of digital equalization in optical transmission systems," in Proc. OFC 2006, Paper no. OTuE5.
  27. S. Sankaranarayanan, I. B. Djordjevic, and B. Vasic, "Iteratively decodable codes on m-flats for WDM high-speed long-haul transmission," J. Lightwave Technol. 23, 3696-3701 (2005). [CrossRef]

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