Spatial Precoding in Frequency Domain for Multi-User MIMO Affine Frequency Division Multiplexing - Archive ouverte HAL
Conference Papers Year : 2024

Spatial Precoding in Frequency Domain for Multi-User MIMO Affine Frequency Division Multiplexing

Vincent Savaux
Xuan Chen
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Abstract

This paper deals with the potential of affine frequency division multiplexing (AFDM) to operate within a multi-user multi-input multi-output (MU-MIMO) system, facilitated by spatial precoding preformed in frequency domain. To this end, we take advantage of the fact that AFDM based on discrete affine Fourier transform (DAFT) can be rewritten as a discrete Fourier transform (DFT)-based precoded orthogonal frequency division multiplexing (OFDM) waveform. By considering the wellknown zero-forcing (ZF) precoder and white noise, we show that MU-MIMO AFDM achieves the same performance as MU-MIMO OFDM in terms of both sum rate and bit error rate (BER).
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Dates and versions

hal-04690038 , version 1 (06-09-2024)

Identifiers

  • HAL Id : hal-04690038 , version 1

Cite

Vincent Savaux, Xuan Chen. Spatial Precoding in Frequency Domain for Multi-User MIMO Affine Frequency Division Multiplexing. EUSIPCO 2024, Aug 2024, Lyon, France. ⟨hal-04690038⟩
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