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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 8 — Apr. 15, 2012
  • pp: 1340–1342

Statistical physics inspired energy-efficient coded-modulation for optical communications

Ivan B. Djordjevic, Lei Xu, and Ting Wang  »View Author Affiliations

Optics Letters, Vol. 37, Issue 8, pp. 1340-1342 (2012)

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Because Shannon’s entropy can be obtained by Stirling’s approximation of thermodynamics entropy, the statistical physics energy minimization methods are directly applicable to the signal constellation design. We demonstrate that statistical physics inspired energy-efficient (EE) signal constellation designs, in combination with large-girth low-density parity-check (LDPC) codes, significantly outperform conventional LDPC-coded polarization-division multiplexed quadrature amplitude modulation schemes. We also describe an EE signal constellation design algorithm. Finally, we propose the discrete-time implementation of D-dimensional transceiver and corresponding EE polarization-division multiplexed system.

© 2012 Optical Society of America

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

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: December 12, 2011
Revised Manuscript: January 9, 2012
Manuscript Accepted: February 6, 2012
Published: April 10, 2012

Ivan B. Djordjevic, Lei Xu, and Ting Wang, "Statistical physics inspired energy-efficient coded-modulation for optical communications," Opt. Lett. 37, 1340-1342 (2012)

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