MIMO-OFDM system and pre-coding and feedback method therein
作者： Pang-An Ting , Jiunn-Tsair Chen , Wei-Ping Chuang , Chao-Kai Wen
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摘要: The present invention provides an antenna-array-based multiple-input multiple-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) system and a pre-coding feedback method used in the same. uses QR decompositions of MIMO channel matrixes to parameterize state information (CSI) every OFDM frequency band. In addition, feeds back related θ φ Givens rotation partial bands then interpolation generate all bands, which further is able represent CSI bands. this way, has advantages low complexity rate requirement.
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