Publication

    Journal Papers

• • N. Witte and L. Wei, “Gap probabilities for the Bures-Hall ensemble and the Cauchy-Laguerre two-matrix model,” arXiv:2208.03278.

  • L. Ye, Y. Huang, J. Osborn, and L. Wei, “Square root statistics of density matrices and their applications,” Entropy, 26 (1), 68, 2024.

  • Y. Huang and L. Wei, “Entropy fluctuation formulas of fermionic Gaussian states,” Annales Henri Poincaré, 24, 4283-4342, 2023.

  • Y. Huang and L. Wei, “Entanglement capacity of fermionic Gaussian states,” Journal of Physics A: Mathematical and Theoretical, 56, 435201, 2023.

  • L. Wei and N. Witte, “Quantum interpolating ensemble: Biorthogonal polynomials and average entropies,” Random Matrices: Theory and Applications, vol. 12, no. 2, 2250055, 2023.

  • L. Wei, “Average capacity of quantum entanglement,” Journal of Physics A: Mathematical and Theoretical, 56, 015302, 2023.

  • Y. Huang and L. Wei, “Second-order statistics of fermionic Gaussian states,” Journal of Physics A: Mathematical and Theoretical, 55, 105201, 2022.

  • S. Liao, L. Wei, and W. Su, “Uncovering hidden factors in electricity consumption based on Gaussian mixture estimation,” Energies, 15, 319, 2022.

  • Y. Huang, L. Wei, and B. Collaku, “Kurtosis of von Neumann entanglement entropy,” Journal of Physics A: Mathematical and Theoretical, 54, 504003, 2021.

  • S.-H. Li and L. Wei “Moments of quantum purity and biorthogonal polynomial recurrence,” Journal of Physics A: Mathematical and Theoretical, 54, 445204, 2021.

  • L. Wei, “Exact variance of von Neumann entanglement entropy over the Bures-Hall measure,” Physical Review E, 102, 062128, 2020. 

  • S. Liao, L. Wei, T. Kim, and W. Su, “Modeling and analysis of residential electricity consumption statistics: A Tracy-Widom mixture density approximation,” IEEE ACCESS, vol. 8, pp. 163558-67, Sept. 2020.

  • L. Wei, “Proof of Sarkar-Kumar's conjectures on average entanglement entropies over the Bures-Hall ensemble,” Journal of Physics A: Mathematical and Theoretical, 53, 235203, 2020.

  • L. Wei, “Skewness of von Neumann entanglement entropy,” Journal of Physics A: Mathematical and Theoretical, 53, 075302, 2020.

  • L. Wei, C.-H. Liu, Y.-C. Liang, and Z. Bai, “Matrix integral approach to MIMO mutual information statistics in high-SNR regime,” Entropy, 21 (11), 1071, 2019.

  • L. Wei, “On the exact variance of Tsallis entanglement entropy in a random pure state,” Entropy, 21 (5), 539, 2019.

  • R.-A. Pitaval, L. Wei, O. Tirkkonen, and C. Hollanti, “Density of spherically-embedded Stiefel and Grassmann codes,” IEEE Transactions on Information Theory, vol. 64, no. 1, pp. 225-248, Jan. 2018.

  • L. Wei, “Proof of Vivo-Pato-Oshanin's conjecture on the fluctuation of von Neumann entropy,” Physical Review E, 96, 022106, 2017.

  • L. Wei, R.-A. Pitaval, J. Corander, and O. Tirkkonen, “From random matrix theory to coding theory: Volume of a metric ball in unitary group,” IEEE Transactions on Information Theory, vol. 63, no. 5, pp. 2814-2821, May 2017.

  • Z. Zheng, L. Wei, R. Speicher, R. Muller, J. Hamalainen, and J. Corander, “Asymptotic analysis of Rayleigh product channels: A free probability approach,” IEEE Transactions on Information Theory, vol. 63, no. 3, pp. 1731-1745, Mar. 2017.

  • R.-A. Pitaval, L. Wei, O. Tirkkonen, and J. Corander, “Volume of metric balls in high-dimensional complex Grassmann manifolds,” IEEE Transactions on Information Theory, vol. 62, no. 9, pp. 5105-5116, Sept. 2016.

  • L. Wei, Z. Zheng, J. Corander, and G. Taricco, “On the outage capacity of orthogonal space-time block codes over multi-cluster scattering MIMO channels,” IEEE Transactions on Communications, vol. 63, no. 5, pp. 1700-1711, May 2015.

  • L. Wei, O. Tirkkonen, and Y.-C. Liang, “Multi-source signal detection with arbitrary noise covariance,” IEEE Transactions on Signal Processing, vol. 62, no. 22, pp. 5907-5918, Nov. 2014.

  • L. Wei, Z. Zheng, O. Tirkkonen, and J. Hamalainen, “On the ergodic mutual information of multiple cluster scattering MIMO channels,” IEEE Communications Letters, vol. 17, no. 9, pp. 1700-1703, Sept. 2013.

  • L. Wei (with G. Akemann and M. Kieburg), “Singular value correlation functions for products of Wishart random matrices,” Journal of Physics A: Mathematical and Theoretical, 46, 275205, 2013 (2013 Highlights Collection of Journal of Physics A).

  • L. Wei, P. Dharmawansa, and O. Tirkkonen, “Multiple primary user spectrum sensing in the low SNR regime,” IEEE Transactions on Communications, vol. 61, no. 5, pp. 1720-1731, May 2013.

  • Z. Zheng, L. Wei, J. Hamalainen, and O. Tirkkonen, “A blind time-reversal detector in the presence of channel correlation,” IEEE Signal Processing Letters, vol. 20, no. 5, pp. 459-462, May 2013.

  • Z. Zheng, L. Wei, J. Hamalainen, and O. Tirkkonen, “Approximation to distribution of product of random variables using orthogonal polynomials for lognormal density,” IEEE Communications Letters, vol. 16, no. 12, pp. 2028-2031, Dec. 2012.

  • L. Wei and O. Tirkkonen, “Spectrum sensing in the presence of multiple primary users,” IEEE Transactions on Communications, vol. 60, no. 5, pp. 1268- 1277, May 2012.

  • L. Wei, M. R. McKay, and O. Tirkkonen, “Exact Demmel condition number distribution of complex Wishart matrices via the Mellin transform,” IEEE Communications Letters, vol. 15, no. 2, pp. 175-177, Feb. 2011.

   Book Chapter

• • O. Tirkkonen and L. Wei, “Exact and asymptotic analysis of largest eigenvalue based spectrum sensing,” Foundation of Cognitive Radio Systems, Chapter 1, edited by Samuel Cheng, InTech, 978-953-51-0268-7, Mar. 2012.

   Conference Papers

• • Y. Huang and L. Wei, “Exact variances of von Neumann entropy over fermionic Gaussian states,” IEEE International Symposium on Information Theory (ISIT), June 2023.

  • F. Freitag, L. Wei, C.-H. Liu, M. Selimi, and L. Veiga, “Server-side adaptive federated learning over wireless mesh network,” The 2023 International Conference on Information Technology & Systems (ICITS), June 2023.

  • C.-H. Liu, D.-C. Liang, R.-H. Gau, and L. Wei, “Modeling and analysis of intermittent federated learning over cellular-connected UAV networks,” IEEE Vehicular Technology Conference (VTC), June 2022.

  • C.-H. Liu, K.-T. Feng, L. Wei, and Y. Luo, “Spatio-temporal federated learning for massive wireless edge networks,” IEEE International Conference on Communications (ICC), May 2022.

  • C.-H. Liu, M. A. Syed, and L. Wei, “Toward ubiquitous and flexible coverage of UAV-IRS-assisted NOMA networks,” IEEE Wireless Communications and Networking Conference (WCNC), Apr. 2022.

  • F. Freitag, P. Vilchez, L. Wei, C.-H. Liu, and M. Selimi, “Performance evaluation of federated learning over wireless mesh networks with low-capacity devices,” The 2022 International Conference on Information Technology & Systems (ICITS), Feb. 2022.

  • F. Freitag, P. Vilchez, L. Wei, C.-H. Liu, M. Selimi, and I. Koutsopoulos, “Demo: An experimental environment based on mini-pcs for federated learning research,” IEEE 19th Annual Consumer Communications & Networking Conference (CCNC), Jan. 2022.

  • F. Freitag, P. Vilchez, L. Wei, C.-H. Liu, and M. Selimi, “Testbed in wireless city mesh metwork with application to federated learning experiments,” The 11th International Conference on the Internet of Things (IoT 2021), Nov. 2021.

  • L. Wei, “Ergodic MIMO mutual information: Twenty years after Emre Telatar,” IEEE International Symposium on Information Theory (ISIT), July 2019.

  • L. Wei, Z. Zheng, and H. Gharavi, “Exact moments of mutual information of Jacobi MIMO channels in high-SNR regime,” IEEE Global Communications Conference (GLOBECOM), Dec. 2018.

  • O. Tirkkonen, Z. Li, L. Wei, and A. Vinel, “On-off necklace codes for asynchronous mutual discovery,” IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Oct. 2017.

  • L. Wei, A. Sarwate, J. Corander, A. Hero, and V. Tarokh, “Analysis of a privacy-preserving PCA algorithm using random matrix theory,” IEEE Global Conference on Signal and Information Processing (GLOBALSIP), Dec. 2016 (invited paper).

  • L. Wei (with S. Kumar and R.-A. Pitaval), “Volume of metric balls in real Grassmann manifold with an application to frames,” International Symposium on Information Theory and Its Applications (ISITA), Oct. 2016.

  • L. Wei, Z. Zheng, A. Hero, and V. Tarokh, “Scaling laws and phase transitions for target detection in MIMO radar,” IEEE Information Theory Workshop (ITW), Sept. 2016 (invited paper).

  • Z. Zheng, L. Wei, Z. Haas, and V. Tarokh, “Transmit beamforming in Rayleigh product MIMO channels: Ergodic mutual information and symbol error rate,” IEEE International Conference on Communications (ICC), May 2016.

  • R.-A. Pitaval, L. Wei, O. Tirkkonen, and J. Corander, “On the exact volume of metric balls in complex Grassmann manifolds,” IEEE Information Theory Workshop (ITW), Oct. 2015.

  • L. Wei, “Ergodic capacity of spatially correlated multi-cluster scattering MIMO channels,” IEEE International Symposium on Information Theory (ISIT), June 2015.

  • L. Wei, R.-A. Pitaval, J. Corander, and O. Tirkkonen, “On the volume of a metric ball in unitary group,” IEEE International Symposium on Information Theory (ISIT), June 2015.

  • Z. Zheng, L. Wei, R. Speicher, R. Muller, J. Hamalainen, and J. Corander, “On the finite-SNR diversity-multiplexing tradeoff in large Rayleigh product channels,” IEEE International Symposium on Information Theory (ISIT), June 2015.

  • S. Hailu, A. Dowhuszko, O. Tirkkonen, and L. Wei, “One-shot games for spectrum sharing among co-located radio access networks,” IEEE International Conference on Communication Systems (ICCS), Dec. 2014 (invited paper).

  • L. Wei, Z. Zheng, J. Corander, and G. Taricco, “Outage capacity of OSTBCs over pico-cellular MIMO channels,” IEEE International Symposium on Information Theory (ISIT), June 2014.

  • Z. Zheng, L. Wei, R. Speicher, R. Muller, J. Hamalainen, and J. Corander, “On the fluctuation of mutual information in double scattering MIMO channels,” 2014 International Zurich Seminar on Communications (IZS), Feb. 2014.

  • L. Wei and O. Tirkkonen, “Multiple primary user spectrum sensing for unknown noise statistics,” IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Sept. 2013.

  • Z. Zheng, L. Wei, and J. Hamalainen, “Novel approximations to the statistics of general cascaded Nakagami-m channels and their applications in performance analysis,” IEEE International Conference on Communications (ICC), June 2013.

  • L. Wei, “Non-asymptotic analysis of scaled largest eigenvalue based spectrum sensing,” IEEE Vehicular Technology Conference (VTC), June 2013.

  • L. Wei, P. Dharmawansa and O. Tirkkonen, “Locally best invariant test for multiple primary user spectrum sensing,” ICST International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), June 2012.

  • L. Wei, O. Tirkkonen, P. Dharmawansa and M. R. McKay, “On the exact distribution of the scaled largest eigenvalue,” IEEE International Conference on Communications (ICC), June 2012.

  • L. Wei and O. Tirkkonen, “Statistical test for multiple primary user spectrum sensing,” ICST International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), June 2011.

  • L. Wei and O. Tirkkonen, “Analysis of scaled largest eigenvalue based detection for spectrum sensing,” IEEE International Conference on Communications (ICC), June 2011.

  • L. Wei and O. Tirkkonen, “Approximate condition number distribution of complex non-central correlated Wishart matrices,” IEEE International Conference on Communications (ICC), June 2011.

  • L. Wei and O. Tirkkonen, “Spectrum sensing with Gaussian approximated eigenvalue ratio based detection,” IEEE International Symposium on Wireless Communication Systems (ISWCS), Sept. 2010.

  • L. Wei and O. Tirkkonen, “Approximation to the condition number distribution of almost square matrices,” IEEE International Workshop on Random Matrix Theory for Wireless Communications (RMTfWC), Oct. 2009.

  • L. Wei and O. Tirkkonen, “Cooperative spectrum sensing of OFDM signals using largest eigenvalue distributions,” IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Sept. 2009.

   Theses

• • Ph.D. Thesis

    • L. Wei, “Towards robust spectrum sensing in cognitive radio networks,” Aalto University, Finland, 2013.

  • Master Thesis

    • L. Wei, “Capacity of hybrid open-loop and closed-loop MIMO with channel uncertainty at transmitter,” Helsinki University of Technology, Finland, 2008.

   Talks and Posters (excluding job talks)

• • Talk: “Cumulant structures of entanglement entropy,” Asymptotics, Randomness, Nonlinearity, Orthogonality: A conference in celebration of Arno Kuijlaars’ 60th birthday, Leuven, Belgium, May 2024.

  • Poster: “Exact average of entanglement capacity of fermionic Gaussian states,” 25th Annual Southwest Quantum Information and Technology Workshop, Albuquerque, USA, Oct. 2023.

  • Talk: “Entanglement estimation for quantum computing,” Applied Mathematics Seminar, Department of Mathematics and Statistics, Texas Tech University, Lubbock, USA, Oct. 2023.

  • Talk: “Random matrix theory based entanglement estimation methods,” School of Physics, Xi'an Jiaotong University, China, July 2023.

  • Talk: “Random matrices, orthogonal polynomials, and quantum entanglement,” Department of Mathematics, City University of Hong Kong, Hong Kong, July 2023.

  • Talk: “Random matrices, orthogonal polynomials, and quantum entanglement,” Mathematical Physics Seminar, School of Mathematics Research, University of Bristol, Bristol, UK, July 2023.

  • Talk: “Random matrices, orthogonal polynomials, and quantum entanglement,” Department of Mathematics, Brunel University, London, UK, June 2023.

  • Talk: “Entanglement estimation for quantum computing,” Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, USA, Apr. 2023.

  • Talk: “Entanglement estimation for quantum computing,” Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, USA, Mar. 2023.

  • Talk: “Random matrices, orthogonal polynomials, and quantum entanglement,” Department of Electrical & Computer Engineering and Department of Physics, Duke University, USA, Oct. 2022.

  • Poster: “Fluctuation formulas for fermionic Gaussian States,” 24th Annual Southwest Quantum Information and Technology Workshop, Berkeley, USA, Oct. 2022.

  • Talk (virtual): “Random matrices, orthogonal polynomials, and quantum entanglement,” School of Mathematical Sciences, Fudan University, China, Sept. 2022.

  • Talk (virtual): “Random matrices, orthogonal polynomials, and quantum entanglement,” College of Mathematics, Sichuan University, China, Sept. 2022.

  • Talk: “Recent progress on entropy-based entanglement estimation,” Department of Communications and Networking, Aalto University, Finland, July 2022.

  • Talk (virtual): “Moments of entanglement entropies and orthogonal polynomial systems,” 16th International Symposium on Orthogonal Polynomials, Special Functions and Applications (OPSFA), Montreal, Canada, June 2022.

  • Talk: “Recent progress on exact moments of entanglement entropies,” Baylor Analysis Feast -- From Operator Theory to Orthogonal Polynomials, Combinatorics, and Number Theory, Department of Mathematics, Baylor University, Waco, USA, May 2022.

  • Talk (virtual): “Recent progress on entanglement estimation,” Machine Learning Seminar Series, College of Science and Engineering, University of Minnesota - Twin Cities, Minneapolis, USA, Apr. 2022.

  • Poster: “Fermionic Gaussian states with and without particle number constraint,” 25th Annual Conference on Quantum Information Processing, Pasadena, USA, Mar. 2022.

  • Talk (virtual): “Estimating the degree of entanglement as resources for quantum computing,” Condensed Matter Physics Seminar, Department of Physics and Astronomy, Texas Tech University, Lubbock, USA, Mar. 2022.

  • Poster (virtual): “Second-order statistics of fermionic Gaussian states,” XVII Brunel-Bielefeld Workshop on Random Matrix Theory and Applications, Bielefeld University, Germany, Dec. 2021.

  • Talk (virtual): “Moments of entanglement entropies,” Random Matrix Seminar, Department of Mathematics and Statistics, University of Melbourne, Melbourne, Australia, June 2020.

  • Talk: “Average entanglement entropies over the Bures-Hall measure,” Integrable Systems and Random Matrix Theory Seminar, Department of Mathematics, University of Michigan, Ann Arbor, USA, Feb. 2020.

  • Talk: “Implementing finite summation identities of polygamma and related functions into Mathematica,” 15th International Symposium on Orthogonal Polynomials, Special Functions and Applications (OPSFA), Hagenberg, Austria, July 2019.

  • Talk: “New finite summation identities of polygamma and related functions,” Wolfram Research, Champaign, Illinois, USA, June 2019.

  • Talk: “Moments of von Neumann entropy of quantum bipartite systems: Results in progress and in perspectives,” Probability Seminar, Department of Mathematics, University of Colorado, Boulder, USA, Nov. 2018.

  • Talk: “Moments of von Neumann entropy in a random pure state,” School of Mathematical Sciences, Fudan University, China, Aug. 2018.

  • Talk: “On the exact moments of von Neumann entropy of quantum bipartite systems,” Department of Communications and Networking, Aalto University, Finland, Nov. 2017.

  • Talk: “On the exact moments of von Neumann entropy of quantum bipartite systems,” Integrable Systems and Random Matrix Theory Seminar, Department of Mathematics, University of Michigan, Ann Arbor, USA, Nov. 2017.

  • Talk: “From quantum entanglement to MIMO capacity and back,” Department of Communications Engineering, Northwestern Polytechnical University, China, Aug. 2017.

  • Talk: “From quantum entanglement to MIMO capacity and back,” Department of Information and Communications Engineering, Xi'an Jiaotong University, China, Aug. 2017.

  • Talk: “Proving a conjecture of Vivo, Pato, and Oshanin: Two tricks and some tedious labor work,” Random Matrices EurAsia Workshop, Fudan University, China, July 2017.

  • Talk: “From quantum entanglement to MIMO capacity and back,” School of Electronics and Information Engineering, Tongji University, China, July 2017.

  • Talk: “Privacy-preserving PCA: Results in progress and results in perspectives,” Department of Communications Engineering, University of Oulu, Finland, Dec. 2015.

  • Poster: “Asymptotic correlations of spiked products of Ginibre matrices,” XI Brunel-Bielefeld Workshop on Random Matrix Theory, Bielefeld University, Germany, Dec. 2015.

  • Talk: “From random matrix theory to coding theory: Volumes of metric balls in manifolds,” School of Mathematical Sciences, Fudan University, China, June 2015.

  • Talk: “Volume of a metric ball in unitary group and the Mock-Gaussian behavior,” Anta/Cost Workshop on Algebra, Number Theory, and Applications to Communications and Computing, Aalto University, Finland, Jan. 2015.

  • Talk: “Wireless communication inspired random matrix theory,” Department of Electrical and Computer Engineering, Seoul National University, Korea, Jan. 2015.

  • Poster: “Sphere-packing bounds and restricted partition functions,” X Brunel-Bielefeld Workshop on Random Matrix Theory, Brunel University, United Kingdom, Dec. 2014.

  • Talk: “Random matrix theory flavored wireless communications,” Random Matrix Theory Seminar, Department of Physics, Bielefeld University, Germany, July 2014.

  • Talk: “Products of random matrices and wireless communications,” The Seventh Workshop on Information Theoretic Methods in Science and Engineering, Honolulu, USA, July 2014.

  • Poster: “On the ergodic capacity of spatially correlated multi-cluster MIMO channels,” Recent Results Session in IEEE International Symposium on Information Theory, Honolulu, USA, June 2014.

  • Poster: “On cumulants of trace of products of random matrices,” IX Brunel-Bielefeld Workshop on Random Matrix Theory and Applications, Bielefeld University, Germany, Dec. 2013.

  • Poster: “Detection of weak signals using random matrix theory,” Workshop on Random Matrices, Hausdorff Center for Mathematics, Bonn University, Germany, May 2012.

  • Poster: “Spherical test based signal detection in cognitive radio,” Workshop on Random Matrix Theory and Applications in Theoretical Sciences, Bielefeld University, Germany, Dec. 2011.

  • Talk: “On Demmel condition number distributions with applications in telecommunications,” Workshop on Large Random Matrices and their Applications, Telecom-Paris, Paris, France, 11-13 Oct. 2010.

  • Talk: “Detection of primary user in cognitive radio network,” The 6th Seminar of Finnish-Russian University Cooperation in Telecommunications (FRUCT), Helsinki, Finland, Nov. 2009.