M.Sc. Benedikt Leible
Technical University of Munich
Associate Professorship of Line Transmission Technology (Prof. Hanik)
Postal address
Postal:
Theresienstr. 90
80333 München
- Phone: +49 (89) 289 - 23459
- Room: 0104.03.411
- benedikt.leible@tum.de
Biography
- Bachelor Electrical Engineering (2014), Ulm University
- Master Electrical Engineering (2016), Stuttgart University
- Research Assistant at TUM since 2017
Teaching
Leitungsgebundene Übertragungstechnik (WiSe 17/18 - WiSe 19/20)
Physical Layer Methods (SoSe 2020 - today)
Research Interests
Fiber-Optic Communication via the Nonlinear Fourier Transform
In future optical communication systems more and more data has to be transmitted, e.g. due to the increasing popularity of on-demand streaming of high-resolution audio and video formats or an increasing amount of machine-to-machine (M2M) communication. As the achievable rates of modern transmission systems seem to saturate, it is necessary to consider alternative approaches for fiber optic data transmission. In recent years, many publications have explored possibilities to overcome this phenomenon, commonly known as 'capacity crunch', by using the nonlinear Fourier transform (NFT).
By means of the nonlinear Fourier transform, signals propagating according to an intricate interplay between dispersion and nonlinear effects, captured by the nonlinear Schrödinger equation can be described by their respective nonlinear Fourier spectra in the nonlinear Fourier domain (or generalized frequency domain). As a result, the channel affects the nonlinear frequency components only by a multiplicative term. In an ideal case, this decouples the nonlinear spectral components during propagation and makes compensation at the receiver trivial.
However, the NFT relies on the integrability of the underlying channel model, which does not include loss or noise terms. This impairments are not negligible in real systems, thus strategies to deal with these realistic system impairments have to be studied if NFT-aided optical transmission systems are to be considered as a successor for the existing wave division multiplexing (WDM) approach.
These considerations regarding realistic transmission systems are of central interest for my research. I study realistic models for coherent detection optical transmission systems using the nonlinear Fourier transform for design and detection of the transmitted waveforms. This includes considerations regarding hardware impairments, the influence of realistic optical amplification schemes and the search for optimized transmission and detection schemes, also utilizing methods from other research areas such as clustering and coding.
2020
- Stability of the Full Spectrum Nonlinear Fourier Transform (Slides). 2020 more… Full text (mediaTUM)
- Back-to-Back Performance of the Full Spectrum Nonlinear Fourier Transform and Its Inverse. Entropy 22 (10), 2020, 1131 more… Full text ( DOI ) Full text (mediaTUM)
- Stability of the Full Spectrum Nonlinear FourierTransform. International Conference on Transparent Optical Networks (ICTON) 2020, 2020 more… Full text (mediaTUM)
- Approaches to Bit-Labeling for Eigenvalue On-Off-Keying Systems (Slides). 2020 more… Full text (mediaTUM)
- Approaches to Bit-Labeling for EigenvalueOn-Off-Keying Systems. International Conference on Transparent Optical Networks (ICTON) 2020, 2020 more… Full text (mediaTUM)
2019
- Clustering Algorithm for Detection in the Discrete Nonlinear Fourier Spectrum (Poster). Workshop on Coding, Cooperation, and Security in Modern Communication Networks (COCO 2019) 2019 more…
- Clustering Algorithm for Detection in the Discrete Nonlinear Fourier Spectrum (Slides). 2019 more… Full text (mediaTUM)
- Clustering Algorithm for Detection in the Discrete Nonlinear Fourier Spectrum. 45th European Conference on Optical Communication (ECOC 2019), 2019 more… Full text ( DOI ) Full text (mediaTUM)
- Amplification Scheme Dependent Eigenvalue Movement in Multispan Soliton Communication Systems. JWCC 2019 2019 more… Full text (mediaTUM)
- Introduction to Nonlinear Frequency Division Multiplexing. 2019 more… Full text (mediaTUM)
- Eigenvalue Trajectories in Multispan Soliton Transmission Systems under Lumped and Distributed Amplification. 21st International Conference on Transparent Optical Networks (ICTON 2019), 2019 more… Full text (mediaTUM)
- Eigenvalue Trajectories in Multispan Soliton Transmission Systems under Lumped and Distributed Amplification. 21st International Conference on Transparent Optical Networks (ICTON 2019), 2019 more… Full text (mediaTUM)
- Clustering Algorithm for Detection in the Discrete Nonlinear Fourier Spectrum. 2019 Workshop on Coding, Cooperation, and Security in Modern Communication Networks (COCO) 2019 more…
2018
- Introduction to Information Transmission Utilizing the Nonlinear Fourier Transform (Talk). Talk, 2018 more… Full text (mediaTUM)
- Soliton Transmission with Raman Amplified Fiber (Talk for NFT Workshop at Helmut Schmidt Universität Hamburg). 2018 more… Full text (mediaTUM)
- Soliton Transmission with 5 Eigenvalues over 2000km of Raman-Amplified Fiber. International Conference on Transparent Optical Networks (ICTON), 2018, 4 more… Full text (mediaTUM)
- Soliton Transmission with 5 Eigenvalues over 2000km of Raman-Amplified Fiber. 2018 more… Full text (mediaTUM)
2017
- Combining Belief Propagation and Successive Cancellation List Decoding of Polar Codes on a GPU Platform. 2017 more… Full text (mediaTUM)
- Construction of Pulses with Continuous and Discrete Nonlinear Spectral Components for NFDM Communication Systems. Workshop Nichtlineare Fourier Transformation der Christian-Albrechts-Universität zu Kiel, 2017 more… Full text (mediaTUM)
- Combining Belief Propagation and Successive Cancellation List Decoding of Polar Codes on a GPU Platform. International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017 more… Full text (mediaTUM)
2016
- Joint IQ Imbalance Compensation and Channel Estimation in Coherent Optical OFDM Systems. International Conference on Signal Processing and Communication Systems (ICSPCS), 2016 more… Full text (mediaTUM)