The Discrete Memoryless Channel

Abstract

Let w (j | i), i, j = 1, ... , a, be nonnegative numbers such that

$$ w\left( {\left. \cdot \right|i} \right) = \left( {w\left( {\left. 1 \right|i} \right),...,w\left( {\left. a \right|i} \right)} \right) $$

is a probability a-vector. The function w (· | ·) will now play the role of a “channel probability function” (c.p.f.).