| 摘要 |
A communication device of the present invention is a communication device which performs data communication via a power line (3) whose transmission characteristics fluctuate, and includes: a parameter group setting unit (111) which sets a first group of transmission parameters; a degree-of-limitation determining unit (40) which determines a degree of limitation on group of transmission parameters for limiting a part of the first group of the transmission parameters; a parameter group converting unit (20) which converts, into a second group of transmission parameters, the first group of the transmission parameters, by limiting the part of the first group of the transmission parameters; a channel communicating unit (30) which obtains a result of transmission parameter evaluation data using the second group of the transmission parameters; and a parameter determining unit (111) which determines an optimal transmission parameter for current data communication, based on the result of the transmission parameter evaluation data.
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