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Proceedings Paper

Energy-efficient p^m-ary signaling for ultra-high-speed optical transport
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Paper Abstract

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.

Paper Details

Date Published: 7 February 2015
PDF: 9 pages
Proc. SPIE 9388, Optical Metro Networks and Short-Haul Systems VII, 93880J (7 February 2015); doi: 10.1117/12.2081142
Show Author Affiliations
Ivan B. Djordjevic, The Univ. of Arizona (United States)
Tao Liu, The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 9388:
Optical Metro Networks and Short-Haul Systems VII
Atul K. Srivastava; Benjamin B. Dingel; Achyut K. Dutta, Editor(s)

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