IEEE 802.11be (Wi-Fi 7): Performance Evaluation of Transmit Beamforming Transceivers with Multi-User Diversity

Roger Pierre Fabris Hoefel

DOI: 10.14209/sbrt.2022.1570820295

Evento: XL Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2022)

Keywords: Wi-Fi 802.11be Transmit Beamforming Scheduling

Abstract

In this research, we analyze the performance gains due to the joint implementation of transmit beamforming (TxBF) transceivers and low-complexity multi-user (MU) diversity scheduling scheme in the 2024 IEEE 802.11be amendment (Wi-Fi 7). The physical layer (PHY) configuration assumes TxBF transceivers with either 2, 4, 8 or 16 transmit antennas and only one receive antenna; 4096-QAM and low-density parity check (LDPC) codes. The system performance is analyzed over TGn B and TGn D channels with and without Doppler spread. The simulation results for the packet error rate (PER) allows to compare the system performance between systems without scheduling and systems with the scheduling scheme based on the signal-to-noise ratio (SNR) that exploits the MU diversity when either 2 or 8 stations (STAs) are analyzed at each transmit opportunity (TxOP).

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