Picture of Benedikt Leible

M.Sc. Benedikt Leible

Technical University of Munich

Associate Professorship of Line Transmission Technology (Prof. Hanik)

Postal address

Postal:
Theresienstr. 90
80333 München

Biography

  • Bachelor Electrical Engineering (2014), Ulm University
  • Master Electrical Engineering (2016), Stuttgart University
  • Research Assistant at TUM since 2017

Theses

Available Theses

Theses in Progress

Bachelor's Theses

Automation of a breakout box for the Chinese DC charging standard

Master's Theses

Path-Loss Average Techniques for the Nonlinear Fourier Transform

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.

Publications

2019

  • Benedikt Leible, Norbert Hanik: 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)
  • Benedikt Leible, Norbert Hanik: 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)
  • Benedikt Leible, Francisco Javier García-Gómez, Norbert Hanik: Clustering Algorithm for Detection in the Discrete Nonlinear Fourier Spectrum (Slides). , Sep 2019 more… Full text (mediaTUM)
  • Benedikt Leible, Francisco Javier García-Gómez, Norbert Hanik: Clustering Algorithm for Detection in the Discrete Nonlinear Fourier Spectrum. 45th European Conference on Optical Communication (ECOC 2019), Sep 2019 more… Full text (mediaTUM)
  • Benedikt Leible, Francisco Javier García-Gómez, Norbert Hanik: 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…
  • Benedikt Leible, Norbert Hanik: Amplification Scheme Dependent Eigenvalue Movement in Multispan Soliton Communication Systems. JWCC 2019, 2019 more… Full text (mediaTUM)
  • Benedikt Leible, Norbert Hanik: Introduction to Nonlinear Frequency Division Multiplexing. , 2019 more… Full text (mediaTUM)

2018

  • Benedikt Leible: Soliton Transmission with Raman Amplified Fiber (Talk for NFT Workshop at Helmut Schmidt Universität Hamburg). , Aug 2018 more… Full text (mediaTUM)
  • Benedikt Leible, Yingkan Chen, Mansoor I. Yousefi, Norbert Hanik: Soliton Transmission with 5 Eigenvalues over 2000km of Raman-Amplified Fiber. International Conference on Transparent Optical Networks (ICTON), Jul 2018, 4 more… Full text (mediaTUM)
  • B.Leible: Introduction to Information Transmission Utilizing the Nonlinear Fourier Transform (Talk). Talk, , Feb 2018 more… Full text (mediaTUM)
  • Benedikt Leible, Yingkan Chen, Norbert Hanik: Soliton Transmission with 5 Eigenvalues over 2000km of Raman-Amplified Fiber. , 2018 more… Full text (mediaTUM)

2017

  • B.Leible: 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)
  • S. Cammerer, B. Leible, M. Stahl, J. Hoydis, S. ten Brink: Combining Belief Propagation and Successive Cancellation List Decoding of Polar Codes on a GPU Platform. International Conference on Acoustics, Speech and Signal Processing (ICASSP), Mar 2017 more… Full text (mediaTUM)
  • B. Leible, S. Cammerer, M. Stahl, J. Hoydis, S. ten Brink: Combining Belief Propagation and Successive Cancellation List Decoding of Polar Codes on a GPU Platform. , 2017 more… Full text (mediaTUM)

2016

  • X. Wang, B. Leible, W. Wang, D. Rörich, S. ten Brink: 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)