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Category > Computer Science Posted 21 Dec 2017 My Price 6.00

provides the following relationship for maximum channel

Shannon’s channel capacity theorem provides the following relationship for maximum channel capacity (bits per second) in terms of bandwidth B and signal-to-noise ratio S/N.

C = B log2 (1+S/N)

The S/N in decibels (dB) is related to S/N in power ratio by

S/N in dB = 10(log10S/N)

The transmission operations system monitors S/N of a telephone channel with a 3-kHz bandwidth and a channel capacity of 30 kbps. When S/N decreases by 3 dB, the operations system issues a warning alarm and the telephone trunk facility is taken out of service if S/N goes down by 6 dB. Calculate the channel capacity in bps at (a) warning threshold and (b) out-of-service limit keeping the same 3-kHz bandwidth for the telephone channel.

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SophiaPretty
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Status NEW Posted 21 Dec 2017 07:12 AM My Price 6.00

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