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  • Alfredsson, Arni,1989Chalmers tekniska högskola,Chalmers University of Technology (author)

Pilot-Aided Joint-Channel Carrier-Phase Estimation in Space-Division Multiplexed Multicore Fiber Transmission

  • Article/chapterEnglish2019

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  • 2019
  • electronicrdacarrier

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  • LIBRIS-ID:oai:research.chalmers.se:7e0d1261-b7bf-499d-8f19-365046e55178
  • https://research.chalmers.se/publication/510280URI
  • https://doi.org/10.1109/JLT.2018.2886837DOI
  • https://research.chalmers.se/publication/510040URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • The performance of pilot-aided joint-channel carrier-phase estimation (CPE) in space-division multiplexed multicore fiber (MCF) transmission with correlated phase noise is studied. To that end, a system model describing uncoded MCF transmission where the phase noise comprises a common laser phase noise, in addition to core- and polarization-specific phase drifts, is introduced. It is then shown that the system model can be regarded as a special case of a multidimensional random-walk phase-noise model. A pilot-aided CPE algorithm developed for this model is used to evaluate two strategies, namely joint-channel and per-channel CPE. To quantify the performance differences between the two strategies, their respective phase-noise tolerances are assessed through Monte Carlo simulations of uncoded transmission for different modulation formats, pilot overheads, laser linewidths, numbers of spatial channels, and degrees of phase-noise correlation across the channels. For 20 GBd transmission with 200 kHz combined laser linewidth and 1% pilot overhead, joint-channel CPE yields up to 3.4 dB improvement in power efficiency or 25.5% increased information rate. Moreover, through MCF transmission experiments, the system model is validated and the strategies are compared in terms of bit-error-rate performance versus transmission distance for uncoded transmission of different modulation formats. Up to 21% increase in transmission reach is observed for 1% pilot overhead through the use of joint-channel CPE.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Agrell, Erik,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)agrell (author)
  • Wymeersch, Henk,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)henkw (author)
  • Puttnam, Benjamin J.Japan National Institute of Information and Communications Technology (NICT) (author)
  • Rademacher, GeorgJapan National Institute of Information and Communications Technology (NICT) (author)
  • Luís, Ruben S.Japan National Institute of Information and Communications Technology (NICT) (author)
  • Karlsson, Magnus,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)magkar (author)
  • Chalmers tekniska högskolaJapan National Institute of Information and Communications Technology (NICT) (creator_code:org_t)

Related titles

  • In:Journal of Lightwave Technology37:4, s. 1133-11420733-87241558-2213

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