Patent ID: 9042469
Filing Date: 2015-05-26
Classification: H04L

Abstract:
1. A receiver for use in a combinerless Linear amplification with Nonlinear Component (LINC) Orthogonal Frequency Division Multiplexing (OFDM) system, comprising: an antenna, being configured to receive a signal from a transmitter of the combinerless LINC OFDM system; a Cyclic Prefix (CP) remover, being electrically connected to the antenna and configured to generate a CP removed signal by removing a CP from the signal; a discrete Fourier transformer, being electrically connected to the CP remover and configured to generate a Discrete Fourier Transform (DFT) signal by applying a DFT operation to the CP removed signal; an equalizer, being configured to generate a plurality of equalized symbols according to the DFT signal; a soft demapper, being electrically connected to the equalizer and configured to generate a plurality of soft bits from the equalized symbols; a decoder, being electrically connected to the soft demapper and configured to generate a plurality of candidates regarding a transmitted bit sequence from the transmitter based on the soft bits by a list-Viterbi decoding algorithm, wherein each of the candidates is a predicted bit sequence of the transmitted bit sequence; and a detector, being electrically connected to the decoder and configured to decide an estimated transmitted bit sequence corresponding to the transmitted bit sequence from the candidates by generating a symbol sequence for each of the candidates, generating an estimated signal for each of the symbol sequences according to a first channel response and a second channel response, comparing each of the estimated signals with the DFT signal, and selecting the candidate whose corresponding estimated signal is closest to the DFT signal as the estimated transmitted bit sequence.