Which wireless standard is associated with Wi‑Fi 6 and includes OFDMA?

Which wireless standard is associated with Wi‑Fi 6 and includes OFDMA?

• A. 802.11ax
• B. 802.11ac
• C. 802.11n
• D. 802.11a

Answer: (A)

Wi-Fi 6 centers on making wireless networks more efficient when many devices are talking at once. A key feature that defines it is OFDMA, which splits a channel into smaller subchannels (Resource Units) so multiple devices can be served simultaneously. This reduces waiting time and improves overall throughput in crowded areas. The standard that brings this capability and is marketed as Wi‑Fi 6 is 802.11ax. Earlier standards like 802.11ac (Wi‑Fi 5) use OFDM and MU‑MIMO to improve performance but do not implement OFDMA. 802.11n (Wi‑Fi 4) uses MIMO with OFDM but still lacks OFDMA, and 802.11a predates OFDMA and also relies on OFDM without it. So the one tied to Wi‑Fi 6 and OFDMA is 802.11ax.

Wi-Fi 6 centers on making wireless networks more efficient when many devices are talking at once. A key feature that defines it is OFDMA, which splits a channel into smaller subchannels (Resource Units) so multiple devices can be served simultaneously. This reduces waiting time and improves overall throughput in crowded areas. The standard that brings this capability and is marketed as Wi‑Fi 6 is 802.11ax.

Earlier standards like 802.11ac (Wi‑Fi 5) use OFDM and MU‑MIMO to improve performance but do not implement OFDMA. 802.11n (Wi‑Fi 4) uses MIMO with OFDM but still lacks OFDMA, and 802.11a predates OFDMA and also relies on OFDM without it. So the one tied to Wi‑Fi 6 and OFDMA is 802.11ax.