University of Oulu

I. Watanabe, T. Takahashi, S. Ibi, A. Tölli and S. Sampei, "Gaussian Belief Propagation for mmWave Large MIMO Detection with Low-Resolution ADCs," 2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC), Oulu, Finland, 2022, pp. 1-5, doi: 10.1109/SPAWC51304.2022.9833951

Gaussian belief propagation for mmWave large MIMO detection with low-resolution ADCs

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Author: Watanabe, Itsuki1; Takahashi, Takumi1; Ibi, Shinsuke2;
Organizations: 1Graduate School of Engineering, Osaka University, Yamada-oka 2–1, Suita, 565–0871, Japan
2Faculty of Science and Engineering, Doshisha University, 1–3 Tataramiyakodani, Kyotanabe, 610–0394, Japan
3Centre for Wireless Communications (CWC), FI-90014 University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
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Language: English
Published: IEEE, 2022
Publish Date: 2023-03-23


We propose a novel message passing de-quantization (MPDQ) algorithm for low-complexity uplink signal detection in mmWave large multi-user multi-input multi-output (MU-MIMO) systems with low-resolution analog-to-digital converters (ADCs) suffering from severe quantization errors. The proposed method consists of a de-quantization (DQ) step based on the Bussgang theorem and a Bayesian multi-user detection (MUD) via Gaussian belief propagation (GaBP), which detects the uplink signal while compensating for the quantized signal distortion. The efficacy is demonstrated by simulation results, which are shown to significantly outperform the current state-of-the-art (SotA) detection designed by Bussgang minimum mean square error (BMMSE) and generalized approximate message passing (GAMP) frameworks in 1-bit quantization, and approach the matched filter bound (MFB) performance.

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ISBN: 978-1-6654-9455-7
ISBN Print: 978-1-6654-9456-4
Pages: 1 - 5
DOI: 10.1109/spawc51304.2022.9833951
Host publication: 2022 IEEE 23rd International Workshop on Signal Processing Advances in Wireless Communication (SPAWC)
Conference: IEEE International Workshop on Signal Processing Advances in Wireless Communication
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: A part of this work was supported by JSPS KAKENHI Grant Number JP20K14734 and JP21H01332, Japan.
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