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Receive antenna selection (AS), in which only a subset of antennas receive simultaneously at any time, requires the transmitter to send pilots multiple times so that the receiver can acquire channel state of all antennas and select the best subset. In conventional AS training, sensitivity of coherent reception to channel estimation errors forces the transmitter to boost the energy allocated to all pilots to ensure accurate channel estimates. Energy for pilots received by unselected antennas isdoi:10.1109/icc.2010.5502805 dblp:conf/icc/KristemMM10 fatcat:rrgl7x3ahzcvjllk455rqk4pta