K
K. Piyawanno
Researcher at Ludwig Maximilian University of Munich
Publications - 23
Citations - 657
K. Piyawanno is an academic researcher from Ludwig Maximilian University of Munich. The author has contributed to research in topics: Quadrature amplitude modulation & Optical polarization. The author has an hindex of 11, co-authored 23 publications receiving 631 citations.
Papers
More filters
Journal ArticleDOI
DSP for Coherent Single-Carrier Receivers
Maxim Kuschnerov,Fabian N. Hauske,K. Piyawanno,Bernhard Spinnler,M. S. Alfiad,Antonio Napoli,Berthold Lankl +6 more
TL;DR: This paper presents a new and fast algorithm to perform blind adaptive CD compensation through frequency-domain equalization and proposes an XPM-mitigating carrier phase recovery as an extension of the standard Viterbi-Viterbi algorithm.
Proceedings ArticleDOI
Adaptive chromatic dispersion equalization for non-dispersion managed coherent systems
Maxim Kuschnerov,Fabian N. Hauske,K. Piyawanno,Bernhard Spinnler,Antonio Napoli,Berthold Lankl +5 more
TL;DR: A novel low complexity estimation algorithm precisely estimates arbitrarily large dispersion in a fixed adaptation length in blind adaptive chromatic dispersion equalization for coherent polarization multiplexed (NRZ/RZ)-QPSK receivers.
Journal ArticleDOI
Channel Parameter Estimation for Polarization Diverse Coherent Receivers
J. C. Geyer,Fabian N. Hauske,C.R.S. Fludger,T. Duthel,C. Schulien,M. Kuschnerov,K. Piyawanno,D. van den Borne,E.-D. Schmidt,Bernhard Spinnler,H. de Waardt,Berthold Lankl,Bernhard Schmauss +12 more
TL;DR: In this paper, a robust in-service estimation of fiber channel parameters from equalizer parameters of a polarization diverse coherent receiver is presented, which is derived from a theoretical fiber channel model.
Proceedings ArticleDOI
Optical Performance Monitoring from FIR Filter Coefficients in Coherent Receivers
Fabian N. Hauske,J. C. Geyer,M. Kuschnerov,K. Piyawanno,T. Duthel,C.R.S. Fludger,D. van den Borne,E.-D. Schmidt,Bernhard Spinnler,H. de Waardt,Berthold Lankl +10 more
TL;DR: In this paper, a robust and precise optical performance monitoring technique from FIR filter coefficients in coherent receivers with digital equalization is presented, where residual chromatic dispersion, DGD and OSNR are simultaneously estimated from measured 111 Gbit/s data.
Proceedings ArticleDOI
Joint-polarization carrier phase estimation for XPM-limited coherent polarization-multiplexed QPSK transmission with OOK-neighbors
M. Kuschnerov,D. van den Borne,K. Piyawanno,Fabian N. Hauske,C.R.S. Fludger,T. Duthel,T. Wuth,J. C. Geyer,C. Schulien,Bernhard Spinnler,E.-D. Schmidt,Berthold Lankl +11 more
TL;DR: In this paper, joint polarization carrier phase estimation for XPM-limited channels with significant improvements over standard methods was demonstrated on measurements of 43 Gb/s NRZ-CP-QPSK with 10.7 Gb /s OOK neighbors.