Energy-Efficient pm -ary signaling for ultra-high-speed optical transport

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The future optical transport networks will be affected by limited bandwidth of information infrastructure, high power consumption, and heterogeneity of network segments. As a solution to all these problems, the multidimensional signaling has been proposed recently. In this invited paper, we follow a different strategy. Instead of conventional binary and 2mary signaling (m≥1) we propose to use the nonbinary pm-ary signaling, where p is a prime larger than 2. With pm-ary signaling we can improve the spectral of conventional 2m-ary schemes by log2p times for the same bandwidth occupancy. At the same time the energy efficiency of pm-ary signaling scheme is much better than that of 2m-ary signaling scheme based on binary representation of data. We further study the energy-efficient coded modulation for pm-ary signaling. The energy-efficient signal constellation design for pm-ary signaling is discussed as well. We will demonstrate that with the proposed pm-ary signaling in combination with energy-efficient signal constellation design, spectral-multiplexing, and polarization-division multiplexing, we can achieve beyond 1 Pb/s serial optical transport without a need for introduction of spatial-division multiplexing.

Original languageEnglish (US)
Title of host publicationOptical Metro Networks and Short-Haul Systems VII
EditorsAtul K. Srivastava, Benjamin B. Dingel, Achyut K. Dutta
ISBN (Electronic)9781628414783
StatePublished - 2015
EventOptical Metro Networks and Short-Haul Systems VII - San Francisco, United States
Duration: Feb 10 2015Feb 12 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherOptical Metro Networks and Short-Haul Systems VII
Country/TerritoryUnited States
CitySan Francisco


  • Coded modulation
  • Energy-efficient coded modulation
  • Forward error correction
  • Low-density parity-check (LDPC) codes
  • Optical communications
  • P-ary signaling
  • Ultra-high-speed optical transport

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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