Cross-polarization interference cancellation in the presence of delay effects

Lankl, Berthold; Nossek, Josef A.; Sebald, G.

doi:10.1109/icc.1988.13771

Cited by 20 publications

(7 citation statements)

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“…There are still other interference technologies besides the saturated attack technology above [3,4,5,6], such as alternant interference, cross-polarization interference, narrow pulse interference and wideband interference etc; all these interference is effective; however the saturated attack technology is obviously the most simple and effective one. The effect of these interferences on the ASLC will be analyzed in future articles.…”

Section: Aslc Under Saturated Attackmentioning

confidence: 98%

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ASLC Based on Phased Array under Saturated Attack

Zhang

Zhu

2006

2006 7th International Symposium on Antennas, Propagation &Amp; EM Theory

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Section: Aslc Under Saturated Attackmentioning

confidence: 98%

“…The cross covariance array of interference data from the main and auxiliary is C = E(XAd(t)) (5) The covariance array of the auxiliary channel interference is M = E(XA*XA ) (6) The weights equation based on the Wiener-Hopf equation is…”

Section: Aslc Under Saturated Attackmentioning

confidence: 99%

ASLC Based on Phased Array under Saturated Attack

Zhang

Zhu

2006

2006 7th International Symposium on Antennas, Propagation &Amp; EM Theory

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“…Polarization multiplexing in the fiber optic channel is a principle that has been used in radio transmission since the 1980s [4]. The optic channel is a special case of the more general multiple-input-multiple-output (MIMO) systems, widely applied in space-division multiplexing.…”

Section: Blind Polarization Demultiplexingmentioning

confidence: 99%

“…In order to account for the changing timing phase due to the timing frequency offset between the transmitter and receiver oscillators, the normalization constant is determined separately for every FFT signal block. They are computed from the mean power for the odd and even samples after equalization given by (4) where is the number of symbols equalized per each FFT. Here, a simple case differentiation of the power ratio for each FFT-block is sufficient to give optimum results regardless of return-to-zero (RZ) or nonreturn-to-zero (NRZ) pulse shaping.…”

Section: B Dispersion Estimationmentioning

confidence: 99%

“…Contrary to wireless communication using polarization multiplexing [4], where the absolute signal polarization only slightly deviates from the original axes of the transmitter, the polarization evolution in typical fibers is arbitrary. Coherent receivers therefore require either a polarization control to align the signal and the local oscillator (LO), or polarization diversity reception, where the cross-polarization interference can be compensated for in the digital domain.…”

mentioning

confidence: 99%

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DSP for Coherent Single-Carrier Receivers

Kuschnerov

Hauske

Piyawanno

et al. 2009

J. Lightwave Technol.

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263

116

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Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract-In this paper, we outline the design of signal processing (DSP) algorithms with blind estimation for 100-G coherent optical polarization-diversity receivers in single-carrier systems. As main degrading optical propagation effects, we considered chromatic dispersion (CD), polarization-mode dispersion (PMD), polarization-dependent loss (PDL), and cross-phase modulation (XPM). In the context of this work, we developed algorithms to increase the robustness of the single DSP receiver modules against the aforesaid propagation effects. In particular, we first present a new and fast algorithm to perform blind adaptive CD compensation through frequency-domain equalization. This low complexity equalizer component inherits a highly precise estimation of residual dispersion independent from previous or subsequent blocks. Next, we introduce an original dispersion-tolerant timing recovery and illustrate the derivation of blind polarization demultiplexing, capable to operate also in condition of high PDL. At last, we propose an XPM-mitigating carrier phase recovery as an extension of the standard Viterbi-Viterbi algorithm.

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