  We present a new decoding protocol to realize transmission of classical
information through a quantum channel at asymptotically maximum capacity,
achieving the Holevo bound and thus the optimal communication rate. At variance
with previous proposals, our scheme recovers the message bit by bit, making use
of a series "yes-no" measurements, organized in bisection fashion, thus
determining which codeword was sent in log(N) steps, N being the number of
codewords.
