| 摘要 |
PROBLEM TO BE SOLVED: To improve transmission characteristics by removing inter-symbol interferences and inter-subcarrier interferences. SOLUTION: An interference-removing portion uses a propagation path estimated value and a decoded result output from a signal detecting portion to repeat processing for removing an interfering component from a signal output from a receiving portion or a received signal storing section. In other words the log likelihood ratio (LLR) of an encoded bit, after being decoded is used to generate a signal replica that a transmitter transmits to own receiver. Hence, the receiver generates a transmission signal replica for a user 1 to whom the transmitter makes a transmission; further, the transmission signal replica and the propagation path estimated value are used to generate an interference replica for the user 1, and the interference replica is subtracted from the signal output from the receiving portion or the received signal storing portion; then, the interference-removing part removes the interference component, by removing the interference replica generated by using a decoding processing result to a portion of data modulation symbols among data modulation symbols constituting an OFDMA signal received. COPYRIGHT: (C)2011,JPO&INPIT
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