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Cognitive Wireless Networking in the TV Bands - page 11 / 56

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Hardware Design

Send high data rate signals in TV bands

Wi-Fi card + UHF translator

Operate in vacant TV bands

Detect TV transmissions using a scanner

Avoid hidden terminal problem

Detect TV transmission much below decode threshold

Signal should fit in TV band (6 MHz)

Modify Wi-Fi driver to generate 5 MHz signals

Utilize fragments of different widths

Modify Wi-Fi driver to generate 5-10-20-40 MHz signals

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