Patent ID: 8861632

Claim:
A method, implemented by a transmitter, of selecting antenna circuits for transmitting signals, the method comprising: configuring the transmitter with a plurality of antenna circuits operating in parallel, each antenna circuit including an adaptive modulation and coding (AMC) unit configured to adjust at least one of modulation order and coding rate applied to a data stream that flows through a sub-carrier modulation unit, a sub-carrier transmit power control (TPC) unit and an antenna connected in series; using a channel estimator residing in the transmitter to calculate a channel metric for each of the antenna circuits; and using a controller residing in the transmitter and in communication with the channel estimator and the antenna circuits to select a subset of sub-carriers associated with the antenna circuits, control the sub-carrier modulation unit to modulate the selected sub-carriers, and control the sub-carrier TPC unit to adjust transmit power level of the selected sub-carriers.