Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Adaptive Boundaries Scheme for Cycle-Slip Mitigation in C-mQAM Coherent Systems
RISE - Research Institutes of Sweden, ICT, Acreo.
RISE - Research Institutes of Sweden, ICT, Acreo.
RISE - Research Institutes of Sweden, ICT, Acreo.
Show others and affiliations
2015 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 20, 2154-2157 p.Article in journal (Refereed) Published
Abstract [en]

We propose a method for cycle-slip mitigation in circular multilevel quadrature amplitude modulation (C-mQAM) coherent optical systems, with constellation rotational asymmetry, based on an adaptive boundaries approach. The impact of cycle-slips in C-mQAM coming from Viterbi-Viterbi algorithm limits the phase noise tolerance. By introducing adaptive boundaries and a differential coding scheme, the ambiguity of asymmetrical rotation of constellation can be effectively removed. Performance of the proposed method is evaluated for a C-16QAM and C-64QAM for various laser linewidths. Results show a noticeable improvement in linewidth symbol duration product (?? ᅵ TS) tolerance compared with the previous studies on C-mQAM and mQAM constellations. The ?? ᅵ TS tolerance reaches 4 ᅵ 10-4 and 1.1 ᅵ 10-4 for C-16QAM and C-64QAM, respectively, for 1 dB penalty at a symbol error rate of 10-3.

Place, publisher, year, edition, pages
2015. Vol. 27, no 20, 2154-2157 p.
Keyword [en]
light coherence;optical communication equipment;optical modulation;optical noise;optical rotation;phase noise;quadrature amplitude modulation;C-mQAM coherent optical systems;Viterbi-Viterbi algorithm;adaptive boundary scheme;asymmetrical rotation ambiguity;circular multilevel quadrature amplitude modulation;constellation rotational asymmetry;cycle-slip mitigation;differential coding scheme;phase noise tolerance;Decoding;Encoding;Optical noise;Phase noise;Phase shift keying;Quadrature amplitude modulation;Signal to noise ratio;Carrier phase estimation;circular quadrature amplitude modulation;coherent optical communications;differential decoding
National Category
Communication Systems Telecommunications Signal Processing
Identifiers
URN: urn:nbn:se:ri:diva-29875DOI: 10.1109/LPT.2015.2455234OAI: oai:DiVA.org:ri-29875DiVA: diva2:1108484
Available from: 2017-06-12 Created: 2017-06-12 Last updated: 2017-06-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Acreo
In the same journal
IEEE Photonics Technology Letters
Communication SystemsTelecommunicationsSignal Processing

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 15 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.26.0