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Quantized Precoding for Multi-Antenna Downlink Channels with MAGIQ [article]

Andrei Nedelcu and Fabian Steiner and Markus Staudacher and Gerhard Kramer and Wolfgang Zirwas and Rakash Sivasiva Ganesan and Paolo Baracca and Stefan Wesemann
2018 arXiv   pre-print
A multi-antenna, greedy, iterative, and quantized (MAGIQ) precoding algorithm is proposed for downlink channels.  ...  MAGIQ and ADMM achieve similar information rates with similar complexity for Rayleigh flat-fading channels and one-bit quantization per real dimension, and they outperform QLP and SQUID for higher order  ...  We introduce a multi-antenna, greedy, iterative, and quantized (MAGIQ) precoding algorithm for downlink channels.  ... 
arXiv:1712.08735v2 fatcat:fiv4rignmfggbiriesrs37gw4a

Low-Resolution Precoding for Multi-Antenna Downlink Channels and OFDM [article]

Andrei Stefan Nedelcu, Fabian Steiner, Gerhard Kramer
2022
Downlink precoding is considered for multi-path multi-user multi-input single-output (MU-MISO) channels where the base station uses orthogonal frequency-division multiplexing and low-resolution signaling  ...  quantization (MAGIQ), and maximum safety margin precoding.  ...  Multi-user MIMO downlink with a low resolution digitally controlled analog architecture.  ... 
doi:10.48550/arxiv.2201.11202 fatcat:6y2bhnqkwjaibgp5l3ajo73dha