Statistical physics inspired energy-efficient codedmodulation for optical communications

Ivan B. Djordjevic, Lei Xu, Ting Wang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


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
Issue number8
StatePublished - Apr 15 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Statistical physics inspired energy-efficient codedmodulation for optical communications'. Together they form a unique fingerprint.

Cite this