What transmission method does both 802.11ax (Wi-Fi 6E) and 802.11be (Wi-Fi 7) use?

Both 802.11ax (Wi-Fi 6E) and 802.11be (Wi-Fi 7) utilize Orthogonal Frequency Division Multiple Access (OFDMA) as a transmission method. OFDMA is a key technology that enhances the efficiency of wireless communication by dividing the available bandwidth into smaller sub-carriers. This allows multiple users to share the same channel simultaneously without interfering with each other, significantly improving overall network throughput and reducing latency.

In the context of Wi-Fi, this means that rather than each user needing to wait for their turn to transmit, data can be sent in parallel across the designated sub-carriers. This is particularly beneficial in environments with high device density, such as offices or public spaces, where many clients are connected to the same access point.

While QAM (Quadrature Amplitude Modulation) is also utilized in these standards to increase data rates by modulating the signal, it is not unique to just Wi-Fi 6E and Wi-Fi 7. CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) is a basic access method used in many types of networks, including earlier Wi-Fi versions, but it does not provide the same level of efficiency and handling of multiple users as