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Joined 2 years ago
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Cake day: August 27th, 2023

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  • how many ways can you really communicate with a cell tower?

    Analog encoding assigns each device in a cell its own frequency range.

    Time-domain multiplexing assigns each device a fraction of a second to transmit.

    Quadrature phase-shift keying alters the timing of a signal to convey data.

    Orthogonal frequency-division multiplexing has each device transmit the same signal over P out of Q bands, such that each device’s signal can be reconstructed by knowing which bands it transmitted on.

    There’s a fucking reason your phone is faster now than in 2010.