On the capacity of fading channels with amplitude-limited inputs
Proceedings of the IEEE International Symposium on Information Theory, ISIT 2016
1879 - 1883
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We address the problem of finding the capacity of fading channels under the assumption of amplitude-limited inputs. Specifically, we show that if the fading coefficients have a finite support and the channel state information is only available at the receiver side, there is a unique input distribution that achieves the channel capacity and this input distribution is discrete with a finite number of mass points.
Channel state information