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How does Wi-Fi work? An electrical engineer explains

  • Written by Bhaskar Krishnamachari, Professor of Electrical Engineering, University of Southern California
imageThe Wi-Fi symbol, like the technology it represents, has become ubiquitous.Smith Collection/Gado via Getty Images

Though you can’t see them, radio waves are all around you all the time, carrying information. For most people, some of those radio waves are Wi-Fi signals. Wi-Fi is the catchy name an industry alliance came up with to market...

Read more: How does Wi-Fi work? An electrical engineer explains

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