Paper on Low-Fidelity User Scheduling for Multiuser Wireless Systems accepted at IEEE ICASSP 2024!

We propose new low-fidelity (LoFi) user equipment (UE) scheduling algorithms for multiuser multiple-input multiple-output (MIMO) wireless communication systems. The proposed methods rely on an efficient guess-and-check procedure that, given an objective function, performs paired comparisons between random subsets of UEs that should be scheduled in certain time slots. The proposed LoFi scheduling methods are computationally efficient, highly parallelizable, and gradient-free, which enables the use of almost arbitrary, non-differentiable objective functions. System simulations in a millimeter-wave (mmWave) multiuser MIMO scenario demonstrate that the proposed LoFi schedulers outperform a range of state-of-the-art user scheduling algorithms in terms of bit error-rate and/or computational complexity.

The paper has been co-​authored by Alexandra Gallyas-Sanhueza, Gian Marti, Victoria Palhares, Reinhard Wiesmayr, and Prof. Christoph Studer and will be presented at the 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) in Seoul in April 2024. A preprint of the paper is available on external pagearXivcall_made.