Apparatus, and an associated method, for facilitating communication of
encoded data, formed of a systematic part and a non-systematic part, in a
radio communication system. Systematic parts of the encoded data are
assigned by an assignor to transmit antennas that are associated with
communication channels exhibiting better, or best, communication quality
levels. Determinations are made of communication conditions to rank the
transmit antennas, thereby permit appropriate assignments of the encoded
data to transmit antennas. Feedback is provided by the receiver that
receives the transmitted data. The feedback information includes, or is
formed responsive to, detections and other measurements at the receivers.