Reception device, reception method, and program

Abstract

The present invention is capable of reducing a calculation amount while lessening performance degradation from MLD. The present invention is a reception device that receives a transmit signal which is transmitted from a transmission device by a MIMO transmission scheme. The reception device includes a channel estimation unit () that performs channel estimation using a received signal, and calculates a channel estimation value, a signal detection unit () that generates a bit log-likelihood ratio by MIMO demultiplexing of a received signal based on the channel estimation value, and a decoding unit () that performs error correction decoding with respect to the bit log-likelihood ratio. The signal detection unit () includes a transmit signal candidate search unit () that searches for a transmit signal candidate based on an error of linear detection depending on the received signal and the channel estimation value, a transmit signal candidate generation unit () that generates a transmit signal candidate by hard decision of an output of the transmit signal candidate search unit, and a decision unit () that generates the bit log-likelihood ratio using the transmit signal candidate.