Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 34,
  • Issue 9,
  • pp. 2339-2352
  • (2016)

On the Impact of Optimal Modulation and FEC Overhead on Future Optical Networks

Open Access Open Access

Abstract

The potential of optimum selection of modulation and forward error correction (FEC) overhead (OH) in future wavelength-routed nonlinear optical mesh networks is studied from an information theory perspective. Different network topologies are studied as well as both ideal soft-decision (SD) and hard-decision (HD) FEC based on demap-and-decode (bit wise) receivers. When compared to the somewhat standard assumption of QPSK with 7% OH, the results show large gains in network throughput. When compared to SD-FEC, HD-FEC is shown to cause network throughput losses of $12$ %, $15$ %, and $20$ % for a national, continental, and transcontinental topology, respectively. Furthermore, it is shown that for national and continental network topologies, using one modulation format and only two OHs achieves at least $75\%$ of the maximum theoretical throughput. This is in contrast with the infinite number of OHs required in the ideal case. The obtained optimal OHs are between $5$ % and $80\%$ , highlighting the advantage of using FEC with high OHs.

© 2016 CCBY

PDF Article
More Like This
Using 25  GbE Client Rates to Access the Gains of Adaptive Bit- and Code-Rate Networking

David J. Ives, Paul Wright, Andrew Lord, and Seb J. Savory
J. Opt. Commun. Netw. 8(7) A86-A91 (2016)

Impact of Wavelength and Modulation Conversion on Translucent Elastic Optical Networks Using MILP

X. Wang, M. Brandt-Pearce, and S. Subramaniam
J. Opt. Commun. Netw. 7(7) 644-655 (2015)

Throughput optimization in hybrid C-C+L-band elastic optical networks enabled by hybrid modulation and wavelength/modulation conversion

Yuxin Xu, Hang Xing, Bin Chen, and Maite Brandt-Pearce
J. Opt. Commun. Netw. 15(11) 900-912 (2023)

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.


Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved