Past Meetup

Brownbag: John Sadowsky - The Evolution of Cellular Radio and Wireless LAN

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Many mobile apps developers may be curious to learn more about the radio and signal processing technologies at the heart of the modern mobile device, the so-called “physical layer” of the communications system. The purpose of this talk to give an intuitive development cellular telephony and WLAN technologies within the framework of tracing their history from 1950s up to today. The wireless physical layer is a highly technical subject; however, this talk will use no mathematical equations, and we assume only a common everyday understandings of terms like frequency, bandwidth and radio.