  While the pace of commercial scale application of Wi-Fi 6 accelerates, the
IEEE 802.11 Working Group is about to complete the development of a new
amendment standard IEEE 802.11be -- Extremely High Throughput (EHT), also known
as Wi-Fi 7, which can be used to meet the demand for the throughput of 4K/8K
videos up to tens of Gbps and low-latency video applications such as virtual
reality (VR) and augmented reality (AR). Wi-Fi 7 not only scales Wi-Fi 6 with
doubled bandwidth, but also supports real-time applications, which brings
revolutionary changes to Wi-Fi. In this article, we start by introducing the
main objectives and timeline of Wi-Fi 7 and then list the latest key techniques
which promote the performance improvement of Wi-Fi 7. Finally, we validate the
most critical objectives of Wi-Fi 7 -- the potential up to 30 Gbps throughput
and lower latency. System-level simulation results suggest that by combining
the new techniques, Wi-Fi 7 achieves 30 Gbps throughput and lower latency than
Wi-Fi 6.
