Abstract:
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Space diversity processing when suitable
either at the transmitter side or at the receiver side
provides a reduction on the transmitted power for the
same received signal quality. The paper discusses the
importance of the channel entropy in order to design,
derived directly from the channel sounder, first, a
system able to decide whether it is worth that the
transmitter knows the channel or not (CSIT or
Channel State Information at the Transmitter). Second,
a channel metric is proposed in order to classify the
channel regardless of the Tx-Rx space processing to be
used. Among other aspects, this channel classifier
would help in designing a vector quantifier to feedback
the channel state information to the transmitter
when CSIT is required. |