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, Swedish ICT, Acreo.ORCID iD: 0000-0001-5730-9656
RISE, Swedish ICT, Acreo.
KTH Royal Institute of Technology, Sweden.
RISE, Swedish ICT, Acreo.ORCID iD: 0000-0001-9839-7488
Show others and affiliations
2015 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 20, p. 2154-2157Article 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 (Δν · TS) tolerance compared with the previous studies on C-mQAM and mQAM constellations. The Δν · TS tolerance reaches 4 × 10 -4 and 1.1 × 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, p. 2154-2157
Keywords [en]
Carrier phase estimation, circular quadrature amplitude modulation, coherent optical communications, differential decoding
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-31902DOI: 10.1109/LPT.2015.2455234OAI: oai:DiVA.org:ri-31902DiVA, id: diva2:1151760
Available from: 2017-10-24 Created: 2017-10-24 Last updated: 2019-07-02Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Navarro, Jaime RodrigoOzolins, Oskars

Search in DiVA

By author/editor
Navarro, Jaime RodrigoOzolins, Oskars
By organisation
Acreo
In the same journal
IEEE Photonics Technology Letters
Computer and Information Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 5 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. 2.35.7