N
Norbert Hanik
Researcher at Technische Universität München
Publications - 150
Citations - 2930
Norbert Hanik is an academic researcher from Technische Universität München. The author has contributed to research in topics: Transmission (telecommunications) & Wavelength-division multiplexing. The author has an hindex of 28, co-authored 145 publications receiving 2699 citations. Previous affiliations of Norbert Hanik include Deutsche Telekom & Ludwig Maximilian University of Munich.
Papers
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Journal ArticleDOI
Impact of 4D Channel Distribution on the Achievable Rates in Coherent Optical Communication Experiments
Tobias A. Eriksson,Tobias Fehenberger,Peter A. Andrekson,Magnus Karlsson,Norbert Hanik,Erik Agrell +5 more
TL;DR: It is shown that for conventional WDM systems without inline dispersion compensation, a circularly symmetric complex Gaussian distribution is a good approximation of the channel and that for nonlinear channels, gains in the achievable information rate can also be achieved by estimating the mean values of the received constellation in four dimensions.
Journal ArticleDOI
Next-generation 100-gigabit metro ethernet (100 GbME) using multiwavelength optical rings
A. Zapata,M. Duser,J Spencer,Polina Bayvel,I. de Miguel,Dirk Breuer,Norbert Hanik,Andreas Gladisch +7 more
TL;DR: The results show that significant resource savings can be achieved by using end-to-end dynamic lightpath allocation, but at the expense of high delay, and the impact of nonuniform traffic demands.
Proceedings ArticleDOI
LDPC Coded Modulation with Probabilistic Shaping for Optical Fiber Systems
TL;DR: In this paper, an LDPC coded modulation scheme with probabilistic shaping, optimized interleavers and noniterative demapping is proposed, which increases the transmission distance by 8% compared to uniformly distributed input.
Journal ArticleDOI
Calculation of Mutual Information for Partially Coherent Gaussian Channels With Applications to Fiber Optics
TL;DR: The decomposition method is applied to partially coherent channels and a property of such channels called “spectral loss” is developed and it may be one effect that needs to be taken into account to explain the behavior of the capacity of nonlinear fiber-optic channels.
Journal ArticleDOI
Optimization of pre- and post-dispersion compensation schemes for 10-Gbits/s NRZ links using standard and dispersion compensating fibers
TL;DR: In this paper, a systematic numerical optimization of pre-and post-compensation normalized sections using standard and dispersion compensating fibers for non-return to zero 10-Gbps/s single channel systems was performed.