Author

Parisa Ramezani

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Preprint Oct 2026

When Every Bit Counts in Quantized Beamforming: From CSI Feedback to Low-Resolution Hardware

Multiple-input multiple-output (MIMO) is a key technology in modern wireless networks, but its performance is often analyzed under ideal hardware assumptions. In practical implementations, however, quantization appears throughout the signal-processing chain, including channel state information (CSI) feedback, fronthaul...

Yasaman Khorsandmanesh, Parisa Ramezani, Emil Björnson · 0 citations

Preprint Aug 2026

Mask-Compliant Clipping-Aware Precoding for Multi-User MIMO-OFDM Systems

This work studies downlink precoding/combining for multi-user multiple-input multiple-output (MU-MIMO)--OFDM systems by minimizing the sum of the users'mean-squared errors (MSEs) under per-subcarrier transmit-power limits, per-antenna OOB spectral-mask constraints, and per-antenna peak-amplitude (clipping) constraints.

Navid Reyhanian, Parisa Ramezani, Emil Björnson · 0 citations