OFDMA — Orthogonal Frequency Division Multiple Access — is the core innovation that separates WiFi 6 from everything that came before it. The marketing copy says WiFi 6 is better in crowded environments, and it is true. OFDMA is specifically why. The Problem With How Older WiFi Worked Every WiFi standard from 802.11a through WiFi 5 used OFDM — Orthogonal Frequency Division Multiplexing — as its physical layer transmission scheme. OFDM is excellent.

Three standards, three branding names, one frequently confused consumer. The WiFi Alliance’s decision to number WiFi generations rather than recite IEEE amendment codes simplified marketing without simplifying the technology — and the gap between WiFi 6, WiFi 6E, and WiFi 7 is not a matter of minor iteration. Each represents a genuinely different capability profile, and choosing the wrong one for a deployment, or dismissing an upgrade as unnecessary, costs real performance.