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Pilot-Aided Joint-C...
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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
Publisher, publication year, extent ...
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2019
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:7e0d1261-b7bf-499d-8f19-365046e55178
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https://research.chalmers.se/publication/510280URI
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https://doi.org/10.1109/JLT.2018.2886837DOI
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https://research.chalmers.se/publication/510040URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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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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Agrell, Erik,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)agrell
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Wymeersch, Henk,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)henkw
(author)
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Puttnam, Benjamin J.Japan National Institute of Information and Communications Technology (NICT)
(author)
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Rademacher, GeorgJapan National Institute of Information and Communications Technology (NICT)
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Luís, Ruben S.Japan National Institute of Information and Communications Technology (NICT)
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Karlsson, Magnus,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)magkar
(author)
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Chalmers tekniska högskolaJapan National Institute of Information and Communications Technology (NICT)
(creator_code:org_t)
Related titles
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In:Journal of Lightwave Technology37:4, s. 1133-11420733-87241558-2213
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