Research

My research includes various topics in information theory, coding theory, and cryptography. I am generally interested in the mathematical foundations and computational/algorithmic aspects of these and related subjects, as well as in their applications.

My publications are indexed by Google Scholar and can be downloaded from my arXiv or ResearchGate webpages.
Other research profiles:   ORCiD, Web of Science, IEEE, dblp, CSAuthors, zbMATH.

Recent Preprints

• Mladen Kovačević, Tatjana Grbić, Darko Čapko, Nemanja Nedić, and Srđan Vukmirović,
  A Zero-Knowledge Proof for the Syndrome Decoding Problem in the Lee Metric,
  Feb. 2025.

• Patrik Velčický, Jakub Breier, Mladen Kovačević, and Xiaolu Hou,
  DeepNcode: Encoding-Based Protection against Bit-Flip Attacks on Neural Networks,
  May 2024.

Selected Publications

• Keshav Goyal, Duc Tu Dao, Mladen Kovačević, and Han Mao Kiah,
  Gilbert–Varshamov Bound for Codes in L₁ Metric using Multivariate Analytic Combinatorics,
  

  IEEE Transactions on Information Theory, 71 (1), 244–262, 2025.

• Mladen Kovačević, Iosif Pinelis, and Marios Kountouris,
  An Information-Theoretic Analog of the Twin Paradox,
  Europhysics Letters (EPL), 146 (4), 42002, 2024.

• Mladen Kovačević,
  Lattice Packings of Cross-polytopes from Reed–Solomon Codes and Sidon Sets,
  Bulletin of the London Mathematical Society, 54 (6), 2372–2378, 2022.

• Mladen Kovačević,
  On the Maximum Number of Non-Confusable Strings Evolving under Short Tandem Duplications,
  Problems of Information Transmission, 58 (2), 111–121, 2022.

• Mladen Kovačević and Dejan Vukobratović,
  Asymptotic Behavior and Typicality Properties of Runlength-Limited Sequences,
  IEEE Transactions on Information Theory, 68 (3), 1638–1650, 2022.

• Mladen Kovačević,
  On the Maximum Entropy of a Sum of Independent Discrete Random Variables,
  Theory of Probability and Its Applications, 66 (3), 482–487, 2021.

• Yuta Sakai, Vincent Y. F. Tan, and Mladen Kovačević,
  Second- and Third-Order Asymptotics of the Continuous-Time Poisson Channel,
  IEEE Transactions on Information Theory, 66 (8), 4742–4760, 2020.

• Mladen Kovačević,
  Zero-Error Capacity of Duplication Channels,
  IEEE Transactions on Communications, 67 (10), 6735–6742, 2019.

• Mladen Kovačević,
  Runlength-Limited Sequences and Shift-Correcting Codes: Asymptotic Analysis,
  IEEE Transactions on Information Theory, 65 (8), 4804–4814, 2019.

• Mladen Kovačević, Carol Wang, and Vincent Y. F. Tan,
  Fundamental Limits of Communication Over State-Dependent Channels with Feedback,
  IEEE Transactions on Communications, 67 (5), 3182–3191, 2019.

• Mladen Kovačević and Vincent Y. F. Tan,
  Asymptotically Optimal Codes Correcting Fixed-Length Duplication Errors in DNA Storage Systems,
  IEEE Communications Letters, 22 (11), 2194–2197, 2018.

• Mladen Kovačević and Vincent Y. F. Tan,
  Codes in the Space of Multisets—Coding for Permutation Channels with Impairments,
  IEEE Transactions on Information Theory, 64 (7), 5156–5169, 2018.

• Mladen Kovačević, Miloš Stojaković, and Vincent Y. F. Tan,
  Zero-Error Capacity of P-ary Shift Channels and FIFO Queues,
  IEEE Transactions on Information Theory, 63 (12), 7698–7707, 2017.

• Mladen Kovačević,
  A Note on Parallel Asynchronous Channels with Arbitrary Skews,
  IEEE Transactions on Information Theory, 63 (11), 7320–7321, 2017.

• Mladen Kovačević and Vincent Y. F. Tan,
  Improved Bounds on Sidon Sets via Lattice Packings of Simplices,
  SIAM Journal on Discrete Mathematics, 31 (3), 2269–2278, 2017.

• Mladen Kovačević and Dejan Vukobratović,
  Perfect Codes in the Discrete Simplex,
  Designs, Codes and Cryptography, 75 (1), 81–95, 2015.

• Mladen Kovačević, Ivan Stanojević, and Vojin Šenk,
  On the Entropy of Couplings,
  Information and Computation, 242, 369–382, 2015.

• Mladen Kovačević and Petar Popovski,
  Zero-Error Capacity of a Class of Timing Channels,
  IEEE Transactions on Information Theory, 60 (11), 6796–6800, 2014.