| 摘要 |
PROBLEM TO BE SOLVED: To obtain error rate characteristics almost tantamount to the one obtained by a soft decision receiver, using a hard decision receiver of a simple configuration. SOLUTION: Error correction coding is performed to input data. Next, error correction/detection coding is conducted and data transmission is performed. Encoding with one code having functionality of error correction and error detection simultaneously may be replaced for these operations. At the reception side, hard decision reception is performed. Error correction/detection decoding is performed, based on the hard decision data. Then, reliability information is attached to the data decided as hard, based on the output information of error correction/detection decoding. Received data with the reliability information is inputted to a soft input error correction decoder. Finally, error correction is performed by the soft input error correction decoder, and data is reproduced. COPYRIGHT: (C)2004,JPO
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