Quasi-Newton FDE in One-Bit Pseudo-Randomly Quantized Massive MIMO-OFDM Systems
IEEE Communications Letters, vol.28, no.4, pp.917-921, 2024 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 28 Issue: 4
- Publication Date: 2024
- Doi Number: 10.1109/lcomm.2024.3363878
- Journal Name: IEEE Communications Letters
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
- Page Numbers: pp.917-921
- Keywords: frequency domain equalization (FDE), Massive MIMO, OFDM, one-bit analog-to-digital converter (ADC), pseudo-random quantization (PRQ)
- Middle East Technical University Affiliated: Yes
Abstract
This letter offers a new frequency-domain equalization (FDE) scheme that can work with a pseudo-random quantization (PRQ) scheme utilizing non-zero threshold quantization in one-bit uplink multi-user massive multiple-input multiple-output (MIMO) systems to mitigate quantization distortion and support high-order modulation schemes. The equalizer is based on Newton’s method (NM) and applicable for orthogonal frequency division multiplexing (OFDM) transmission under frequency-selective fading by exploiting the properties of massive MIMO. We develop a low-complexity FDE scheme to obtain a quasi-Newton method. The proposed detector outperforms the benchmark detector with comparable complexity.