no code implementations • 28 Dec 2022 • Chongjun Ouyang, Ali Bereyhi, Saba Asaad, Ralf R. Müller, Hongwen Yang
This work proposes a novel joint receive antenna selection and precoding scheme for multiuser multiple-input multiple-output uplink transmission that relies only on the long-term statistics of the CSI.
no code implementations • 28 Dec 2022 • Chongjun Ouyang, Ali Bereyhi, Saba Asaad, Ralf R. Müller, Hongwen Yang
This work studies a low-complexity design for reconfigurable intelligent surface (RIS)-aided multiuser multiple-input multiple-output systems.
no code implementations • 14 Jun 2022 • Ali Bereyhi, Adela Vagollari, Saba Asaad, Ralf R. Müller, Wolfgang Gerstacker, H. Vincent Poor
Compared to the state-of-the-art, the proposed scheme poses a drastically lower computational load on the system: For $K$ devices and $N$ antennas at the parameter server, the benchmark complexity scales with $\left(N^2+K\right)^3 + N^6$ while the complexity of the proposed scheme scales with $K^p N^q$ for some $0 < p, q \leq 2$.
no code implementations • 19 Jan 2022 • Ali Bereyhi, Bruno Loureiro, Florent Krzakala, Ralf R. Müller, Hermann Schulz-Baldes
Unlike the classical linear model, nonlinear generative models have been addressed sparsely in the literature of statistical learning.
no code implementations • 10 Feb 2020 • Ralf R. Müller, Bernhard Gäde, Ali Bereyhi
We present an algorithm to reduce the computational effort for the multiplication of a given matrix with an unknown column vector.
Quantization Information Theory Data Structures and Algorithms Information Theory