TY - SER AU - Nagatomi, Kouji AU - Kawai, Hiroyuki AU - Higuchi, Kenichi TI - Complexity-Reduced Mld Based on Qr Decomposition in Ofdm Mimo Multiplexing with Frequency Domain Spreading and Code Multiplexing KW - Maximum likelihood Detection (Mld-) KW - Signal Detection Method KW - Orthogonal Frequency Division Multiplexing (Ofdm) ER -