Apparatus and method for selection of precoding matrix
The present invention relates to an apparatus and a method for selection of a precoding matrix. In the present invention, a precoding matrix to enable an effective signal-to-noise ratio (ESNR) to have a maximum value with respect to a signal vector that requires retransmission is selected in a codebook and fed back to a transmitter. Accordingly, since the effective signal-to-noise ratio has the maximum value after the signal vector is retransmitted, it is possible to minimize a reception error probability of retransmission.
Electronics and Telecommunications Research Institute Samsung Electronics Co., Ltd.
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Jin-Woo Byung-Jae Dong Seung Wooram Ji Hyung Choong Il Young Seog Chung Gu Seung Joon
Kim Kwak Kwon Shin Kim Yeh Song Kang Lee