Communication system, transmission apparatus, reception apparatus, matrix generation apparatus, communication method, transmission method, reception method, matrix generation method and recording medium

A transmission apparatus that is configured to transmit a transmission signal through a communication line, wherein

• the transmission apparatus comprises:
• at least one memory configured to store instructions;
• and
• at least one processor configured to execute the instructions to:
• convert a first bit stream having a first bit length b into a second bit stream having a second bit length n that is longer than the first bit length b, w−1 (wherein, w is an integer that is equal to or larger than 2) number of bit 1 is assigned at a bit position based on a bit array pattern of the first bit stream in the second bit stream;
• convert the second bit stream into a third bit stream having a third bit length t that is shorter than the second bit stream n;
• and
• generate an index value by using a Neural Network that has an input node the number of which is equal to the third bit length t and that is configured to output the index value designating a feature of the transmission signal when the third bit stream is inputted thereto.

A reception apparatus that is configured to receive, as a reception signal, a transmission signal transmitted by a transmission apparatus through a communication line, wherein

• the transmission apparatus is configured to:
• convert a first bit stream having a first bit length b into a second bit stream having a second bit length n that is longer than the first bit length b, w−1 (wherein, w is an integer that is equal to or larger than 2) number of bit 1 is assigned at a bit position based on a bit array pattern of the first bit stream in the second bit stream;
• convert the second bit stream into a third bit stream having a third bit length t that is shorter than the second bit stream n;
• and generate the transmission signal based on the third bit stream,
• the reception apparatus comprises:
• at least one memory configured to store instructions;
• and
• at least one processor configured to execute the instructions to:
• generate first numerical data by using a Neural Network that has an output node the number of which is equal to the third bit length t and that is configured to output the first numerical data stream including numerical data the number of which is equal to the third bit length t when a feature of the reception signal is inputted thereto;
• convert the first numerical data stream into a second numerical data stream including numerical data the number of which is equal to the second bit length n;
• and
• generate a fourth bit stream having the first bit length b by performing, on the second numerical data stream, a conversion processing that corresponds to an inverse conversion of a conversion processing for converting the first bit stream into the second bit stream.

A non-transitory recording medium on which a computer program that allows a computer to execute a transmission method of transmitting a transmission signal through a communication line is recorded, wherein

• the transmission method includes:
• converting a first bit stream having a first bit length b into a second bit stream having a second bit length n that is longer than the first bit length b, w−1 (wherein, w is an integer that is equal to or larger than 2) number of bit 1 is assigned at a bit position based on a bit array pattern of the first bit stream in the second bit stream;
• converting the second bit stream into a third bit stream having a third bit length t that is shorter than the second bit stream n;
• and
• generating the transmission signal by using a Neural Network that has an input node the number of which is equal to the third bit length t and that is configured to output an index value designating a feature of the transmission signal when the third bit stream is inputted thereto.

A non-transitory recording medium on which a computer program that allows a computer to execute a reception method of receiving, as a reception signal, a transmission signal transmitted by a transmission apparatus through a communication line is recorded, wherein

• the transmission apparatus is configured to:
• convert a first bit stream having a first bit length b into a second bit stream having a second bit length n that is longer than the first bit length b, w−1 (wherein, w is an integer that is equal to or larger than 2) number of bit 1 is assigned at a bit position based on a bit array pattern of the first bit stream in the second bit stream;
• convert the second bit stream into a third bit stream having a third bit length t that is shorter than the second bit stream n;
• and generate the transmission signal based on the third bit stream,
• the reception method includes:
• inputting the reception signal into a Neural Network that has an output node the number of which is equal to the third bit length t and that is configured to output a first numerical data stream including numerical data the number of which is equal to the third bit length t when a feature of the reception signal is inputted thereto;
• converting the first numerical data stream into a second numerical data stream including numerical data the number of which is equal to the second bit length n;
• and
• generating a fourth bit stream having the first bit length b by performing, on the second numerical data stream, a conversion processing that corresponds to an inverse conversion of a conversion processing for converting the first bit stream into the second bit stream.