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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 5 — May. 1, 2012
  • pp: 382–391

Zigzag-Coded Modulation for High-Speed Fiber Optical Channels

Salim Kahveci, Chen Gong, and Xiaodong Wang  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 5, pp. 382-391 (2012)
http://dx.doi.org/10.1364/JOCN.4.000382


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Abstract

We propose new coded modulation schemes for ultra-high-speed optical transmission (e.g., 100 Gb/s and above) using component concatenated zigzag codes in combination with high-order digital modulation and coherent detection. In particular, we propose single-level coded modulation and multi-level coded modulation using concatenated zigzag codes. For single-level coded modulation, only one concatenated zigzag code is employed to encode the information bits, and Gray mapping is employed to map the coded bits to channel symbols. For multi-level coded modulation, the mapping bits are divided into several layers, and one component concatenated zigzag code is employed at each layer; the layers are decoded successively, and the decoded layers are used to assist the decoding of the subsequent layers. Furthermore, we propose a rate allocation scheme for the component concatenated zigzag codes and a parameter selection scheme for multi-level coded modulation. Simulation results demonstrate that single-level and multi-level coded systems with zigzag codes show up to 0.5 dB performance gain over structured low-density parity check codes.

© 2012 OSA

OCIS Codes
(000.0000) General : General
(060.1660) Fiber optics and optical communications : Coherent communications

ToC Category:
Research Papers

History
Original Manuscript: January 4, 2012
Manuscript Accepted: March 20, 2012
Published: April 16, 2012

Citation
Salim Kahveci, Chen Gong, and Xiaodong Wang, "Zigzag-Coded Modulation for High-Speed Fiber Optical Channels," J. Opt. Commun. Netw. 4, 382-391 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-5-382

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