Adaptive Antenna Selection and Tx/Rx Beamforming for Large-Scale MIMO Systems in 60 GHz Channels

Date Added: Oct 2011
Format: PDF

The authors consider a large-scale MIMO system operating in the 60 GHz band employing beamforming for high-speed data transmission. They assume that the number of RF chains is smaller than the number of antennas, which motivates the use of antenna selection to exploit the beamforming gain afforded by the large-scale antenna array. However, the system constraint that at the receiver, only a linear combination of the receive antenna outputs is available, which together with the large dimension of the MIMO system makes it challenging to devise an efficient antenna selection algorithm.