PEAK TO AVERAGE POWER RATIO REDUCTION OF DM SIGNALS USING PEAK REDUCTION CARRIERS: ABSTRACT A technique is described for a better than 5 dB reduction in the Peak to Average Power Ratio (PAPR) of an OFDM signal. The optimal amplitude and pha

paper for LTE codebook

To do complex SVD for non-codebook precoding in open loop spatial multiplexing in MIMO, Householder Reduction and QR Diagonalization is applied to H matrix to obtain eigenvalues and eigenvectors of matrix.