'Wider frequency band' diaporamas de présentation

How is information sent and received without wires

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Spread Spectrum

Spread Spectrum. Spread Spectrum. Input is fed into a channel encoder Produces analog signal with narrow bandwidth Signal is further modulated using sequence of digits Spreading code or spreading sequence Generated by pseudonoise, or pseudo-random number generator

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Data and Computer Communications

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Data and Computer Communications

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IE 419/519 Wireless Networks

IE 419/519 Wireless Networks. Lecture Notes #6 Spread Spectrum. Introduction. In 1985, the FCC modified Part 15 of the radio spectrum regulation Governs unlicensed devices Attempt to stimulate the production and use of wireless network products

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Data and Computer Communications

421 views • 22 slides