How Data TravelsWireless Communication

Why Wi-Fi Slows Down in a Crowd

Only one device can speak on a channel at a time

Full Wi-Fi bars at the airport, and still nothing loads. If the signal is that strong, what's getting in the way?

You'll find out

  • Why only one device can talk at a time
  • What devices do after a collision
  • How newer Wi-Fi shares the air

Why it matters

Every home, café and office shares airtime this way, so a crowded channel slows down everyone on it.

About 3 min6 interactive slides · 5 questionsLesson 241 · Zone 27

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