It's important to remember that, unlike SU-MIMO, MU-MIMO with Wi-Fi 5 works only with downlink wireless connections. Depending on the Wi-Fi standard, MU-MIMO can be one-way or two-way
Read on for 10 facts that will help get you up to speed. The Wi-Fi 5 (02.11ac) standard introduced optional MU-MIMO, and Wi-Fi 6 (802.11ax) supports improvements. Is jumping ahead to Wi-Fi 6 the right move?.What’s the difference between OFDMA and MU-MIMO in Wi-Fi 6?.
MIMO – which stands for multiple input multiple output – technology has evolved over the years since the debut of the single-user mode (SU-MIMO), which was introduced more than a decade ago with the 802.11n wireless standard.
MU-MIMO can greatly increase the network's throughput and is a real asset for high density networks. For example, a wireless access point (AP) can send data to four different Wi-Fi devices at the same time. Multi-user MIMO allows multiple Wi-Fi devices to simultaneously receive multiple data streams.