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Differentiate between Fast fading and Slow fading
Fast fading refers to changes in signal strength among a transmitter and receiver as the distance among the two changes by a small distance of about one-half a wavelength.
Slow fading refers to changes in signal strength among a transmitter and receiver as the distance among the two changes by a larger distance, well in extra of a wavelength.
802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
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