An algorithm for determining all the optimal input probability distributions of the DMC
Yoichiro Watanabe · IEEE Transactions on Information Theory · 1983
The set of all the input probability distributions that achieve the capacity of a discrete memoryless channel (DMC) is obtained. A mathematical approach to characterize the simplicial subchannels inherent in the DMC is proposed to determine the desired set. A numerical example of an algorithm for calculating this set is also presented.