Statistical physics inspired energy-efficient codedmodulation for optical communications

Ivan B. Djordjevic, Lei Xu, Ting Wang

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1340-1342
Number of pages3
JournalOptics letters
Volume37
Issue number8
DOIs
StatePublished - Apr 15 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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