A MIMO channel frequency response matrix is decomposed into a frequency-related part and a constant part. The constant part is independent of subcarrier index and of number of subcarriers in one symbol interval. Separated QR decomposition and either SVD or GMD is applied to the two parts. A right unitary...http://www.google.de/patents/US8135092?utm_source=gb-gplus-sharePatent US8135092 - MIMO-OFDM wireless communication system
