| 摘要 |
There is provided an antenna selection method and others capable of reducing a transmission error ratio and a calculation amount. In this method, a reception side feeds back M-column channel estimation matrix H_e to a transmission side (ST701). Next, the number K of the emission antennas is confirmed. When I=1 (that is, when the first antenna is selected), it is initialized and the emission channel matrix H is initialized by “0” (ST702). Next, it is judged whether I<K (ST703). If the judgment result is “NO”, the antenna selection process is terminated and the channel matrix H is outputted (ST704). If I<K, one column is added to the channel matrix H to constitute H1 and QR decomposition is performed for all the possible (M−I+1) H1 before selecting one H1 from all the H1 (ST705). Next, H=H1 is set and control is returned to ST703 (ST706).
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