Picture of Andreas Lenz

M.Sc. Andreas Lenz

Technical University of Munich

Associate Professorship of Coding and Cryptography (Prof. Wachter-Zeh)

Postal address

Postal:
Theresienstr. 90
80333 München

Biography

Andreas Lenz received his B.Sc and M.Sc degree in Electrical Engineering and Information technology in 2013, respectively 2016 at TUM (both with high distinction).

During his studies he was working on analog filter optimization for sub-Nyquist channel estimation systems. As part of his Master studies, he was an exchange student at University of Alberta, Canada. From 2014 until 2016 he was working on mobile network analysis systems at Rohde & Schwarz. For his master thesis, he visited Prof. Swindlehurst from University of California, Irvine. In 2016, he joined the coding for communications and data storage group at TUM (Prof. Wachter-Zeh), where he is involved in research on error correcting codes for insertion and deletion errors. Since 2016, Andreas is teaching assistant of the lecture "Channel Coding"

Theses

Available Theses

Error Correction for DNA-Based Data Storage

Description

DNA-based data storage is a novel approach for long term digital data archiving.

Due to the unique nature of writing and reading DNA, the channel associated with these processes is still realtively poor understood and varies over different  synthesis (writing) and sequencing (reading) technologies. The task of the student is to analyze different sequencing methods and the associated errors and formulate associated channel models. Based on these models, error-correcting schemes shall be evaluated.

Prerequisites

- Basic principles of stochastic and algebra
- Channel Coding
- Information Theory

Supervisor:

Theses in Progress

Polarcodes for IDS Channel

Description

This work deals with the constuction and decoding of polar codes for the insertion, deletion, and substitution channel.

Supervisor:

Publications

2021

  • A. Lenz, Y. Liu, C. Rashtchian, P. Siegel, A. Tan, A. Wachter-Zeh, and E. Yaakobi: Codes for Cost-Efficient DNA Synthesis. Non-Volantile Memories Workshop (NVMW), 2021 more…
  • Lenz, A.; Maarouf, I.; Welter, L.; Wachter-Zeh, A.; Rosnes, E.; Graell i Amat, A.: Concatenated Codes for Recovery From Multiple Reads of DNA Sequences. IEEE Information Theory Workshop 2020, 2021 more…
  • Lenz, Andreas; Bitar, Rawad; Wachter-Zeh, Antonia; Yaakobi, Eitan: Function-Correcting Codes. 2021 IEEE International Symposium on Information Theory (ISIT), IEEE, 2021 more… Full text ( DOI )
  • Lenz, Andreas; Rashtchian, Cyrus; Siegel, Paul H.; Yaakobi, Eitan: Covering Codes Using Insertions or Deletions. IEEE Transactions on Information Theory 67 (6), 2021, 3376-3388 more… Full text ( DOI )
  • Lenz, Andreas; Siegel, Paul H.; Wachter-Zeh, Antonia; Yaakobi, Eitan: On the Capacity of DNA-Based Data Storage under Substitution Errors. Proc. Visual Commun. Image Process., 2021 more…

2020

  • Lenz, A.; Liu, Y.; Rashtchian, C.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Coding for Efficient DNA Synthesis. International Symposium on Information Theory (ISIT), 2020 more…
  • Lenz, A.; Polyanskii, N.: Optimal Codes Correcting a Burst of Deletions of Variable Length. International Symposium on Information Theory (ISIT), 2020 more…
  • Lenz, A.; Rashtchian, C.; Siegel, P.; Yaakobi, E.: Covering Codes using Insertions or Deletions. IEEE Transactions on Information Theory Special Issue Dedicated to the Memory of Vladimir I. Levenshtein, 2020 more… Full text ( DOI )
  • Lenz, A.; Rashtchian, C.; Siegel, P.; Yaakobi, E.: Covering Codes for Insertions and Deletions. International Symposium on Information Theory (ISIT), 2020 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Coding over Sets for DNA Storage. IEEE Transactions on Information Theory 66 (4), 2020 more… Full text ( DOI )
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Achieving the Capacity of the DNA Storage Channel. International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2020 more…
  • Lenz, A.; Welter, L.; Puchinger S.: Achievable Rates of Concatenated Codes in DNA Storage under Substitution Errors. IEEE Intertional Symposium on Information Theory and its Applications (ISITA), 2020 more…
  • Lenz, Andreas; Siegel, Paul H.; Wachter-Zeh, Antonia; Yaakobi, Eitan: Coding Over Sets for DNA Storage. IEEE Transactions on Information Theory 66 (4), 2020, 2331-2351 more… Full text ( DOI )

2019

  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: An Upper Bound on the Capacity of the DNA Storage Channel. IEEE Information Theory Workshop (ITW), 2019 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Error-correcting Codes for Data Storage in Unordered Sets of DNA Strands. Information Theory and Applications Workshop (ITA), 2019 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Anchor-Based Correction of Substitutions in Indexed Sets. International Symposium on Information Theory (ISIT), 2019 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Coding over Sets for DNA Storage. Non-Volatile Memory Workshop (NVMW), 2019 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Correcting Errors in Sets of Unordered DNA Strands. CMRR Review, 2019 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Coding over Sets for DNA Storage. Stanford Coding Seminar, 2019 more…
  • Lenz, A.; Wachter-Zeh, A.; Yaakobi, E.: Duplication-Correcting Codes. Designs, Codes, and Cryptography 87, 2019, 277-298 more… Full text ( DOI )
  • Shinkar, T.; Yaakobi, E.; Lenz, A.; Wachter-Zeh, A.: Clustering-Correcting Codes. International Symposium on Information Theory (ISIT), 2019 more…

2018

  • Holzbaur, L.; Lenz, A.; Wachter-Zeh, A.: Coding for Reliable Data Storage. TUM-IAS General Assembly, 2018 more…
  • Immler, V.; Hiller, M.; Qinzhi, L.; Lenz, A.; Wachter-Zeh, A.: Variable-Length Bit Mapping and Error- Correcting Codes for Higher-Order Alphabet PUFs. Journal of Hardware and Systems Security, 2018 more… Full text ( DOI )
  • Lenz, A.; Jünger, N., Wachter-Zeh, A.: Correcting Duplications of Multiple Consecutive Symbols. Workshop on Coding, Cooperation, and Security in Modern Communication Networks (COCO), 2018 more…
  • Lenz, A.; Jünger, N., Wachter-Zeh, A.: Bounds and Constructions for Multi-Symbol Duplication Error Correcting Codes. 16th International Workshop on Algebraic and Combinatorial Coding Theory (ACCT), 2018 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Coding over Sets for DNA Storage. Munich Workshop on Coding and Cryptography (MWCC), 2018 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Constructions and Bounds for Reliable Data Storage in Unordered DNA Sequences. TUM CoC COM PhD Workshop 2018: Ultra Reliable Low Latency Communications and Applications for 5G, 2018 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Coding over Sets for DNA Storage. IEEE Int. Symp. Inform. Theory (ISIT), 2018 more…
  • Lenz, A.; Siegel, P.; Wachter-Zeh, A.; Yaakobi, E.: Correcting Errors in Sets of Distorted DNA Sequences. DLR/TUM/UUlm Workshop on Coding and Cryptography, 2018 more…
  • Lenz, A.; Stein, M.; Swindlehurst, A. L.: Joint Transmit and Receive Filter Optimization for Sub-Nyquist Delay-Doppler Estimation. IEEE Transactions on Signal Processing, 2018 more… Full text ( DOI )

2017

  • Immler, V.; Hiller, M.; Liu, Q.; Lenz, A.; Wachter-Zeh, A.: Variable-Length Bit Mapping and Error-Correcting Codes for Higher-Order Alphabet PUFs. TUM-Eurecom Workshop on Communications and Security, 2017 more…
  • Immler, V.; Hiller, M.; Liu, Q.; Lenz, A.; Wachter-Zeh, A.: Variable-Length Bit Mapping and Error-Correcting Codes for Higher-Order Alphabet PUFs. Seventh International Conference on Security, Privacy, and Applied Cryptography Engineering (SPACE) 2017, 2017 more…
  • Lenz, A.; Stein, M.; Swindlehurst, A. L.: Analog Transmit Signal Optimization for Undersampled Delay-Doppler Estimation. 25th European Signal Processing Conf. (EUSIPCO), 2017 more…
  • Lenz, A.; Wachter-Zeh, A.: Maximum Cardinalities for Tandem and Palindromic Duplication Correcting Codes. 18th Joint Workshop Coding and Communications (JWCC), 2017 more…
  • Lenz, A.; Wachter-Zeh, A.; Yaakobi, E.: On Codes Correcting Adjacent Symbol Duplications. Munich Workshop on Coding and Applications (MWCA), 2017 more…
  • Lenz, A.; Wachter-Zeh, A.; Yaakobi, E.: Codes for Tandem and Palindromic Duplications Errors. International Symposium on Information Theory (ISIT), 2017 more…
  • Lenz, A.; Wachter-Zeh, A.; Yaakobi, E.: Bounds on Codes Correcting Tandem and Palindromic Duplications. 10th International Workshop Coding and Cryptography (WCC), 2017 more…
  • Stein, M.; Lenz, A.; Swindlehurst, A. L.: On the Channel Parameter Tracking Error for Sub-Nyquist Satellite-Based Synchronization. IEEE Int. Workshop Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2017 more…

2015

  • Lenz, A.; Stein, M.; Nossek, J.: Signal Parameter Estimation Performance Under a Sampling Rate Constraint. 49th Asilomar Conf. Signals, Systems and Computers, 2015 more…

2014

  • Stein, M.; Lenz, A.; Nossek, J.: Optimum Analog Receive Filters for Detection and Inference Under a Sampling Rate Constraint. IEEE Int. Conf. Acoustic, Speech and Signal Processing (ICASSP), 2014 more…