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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 21, Iss. 3 — Mar. 1, 2003
  • pp: 727–

On Turbo Code Decoder Performance in Optical-Fiber Communication Systems With Dominating ASE Noise

Yi Cai, Joel M. Morris, Tülay Adali, and Curtis R. Menyuk

Journal of Lightwave Technology, Vol. 21, Issue 3, pp. 727- (2003)


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Abstract

In this paper, we study the effects of different ASE noise models on the performance of turbo code (TC) decoders. A soft-decoding algorithm,the Bahl, Cocke, Jelinek, and Raviv (BCJR) decoding algorithm , and there exist standard TCs for additive white Gaussian noise (AWGN) channels. We show that using a MAP decoding algorithm based on the Gaussian noise assumptions, however, may significantly degrade the TC decoder performance in an optical-fiber channel with non-Gaussian ASE noise. To take full advantage of TC, the accurate noise statistics in optical-fiber transmissions should be used in the MAP decoding algorithm.

[IEEE ]

Citation
Yi Cai, Joel M. Morris, Tülay Adali, and Curtis R. Menyuk, "On Turbo Code Decoder Performance in Optical-Fiber Communication Systems With Dominating ASE Noise," J. Lightwave Technol. 21, 727- (2003)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-21-3-727

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