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Approaching capacity of a continuous channel by discrete input distributions

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1 Author(s)
Schwarte, H. ; Inst. for Exp. Math., Essen Univ., Germany

In this paper memoryless channels with general alphabets and input constraint are considered. Sufficient conditions are given that channel capacity can be approached by discrete input distributions or by uniform input distributions with finite support. As an example, the additive white Gaussian noise channel is considered

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Information Theory, IEEE Transactions on  (Volume:42 ,  Issue: 2 )