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Capacity Of Channel


It is defined as maximum data rate that can be supported by channel with minimum probability of error.

Let a channel has bandwidth ‘B’ and additive Gaussian band limited white noise is ‘N’, then capacity of channel is given by

748.png bits/sec

This equation is called Shanon Hartley Theorem. When the bandwidth tends to infinity then capacity of channel does not tends to infinity as 754.png tends to zero because of high noise power. So, 759.png 


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