Communication method, communication system, transmitter, and receiver

A communication system including a transmitter and a receiver,

• wherein the transmitter sets an intensity ratio and a phase difference between bases defined by two orthogonal modes, based on transmission bit information,
• the transmitter generates a transmission signal by converting the transmission bit information by using the set intensity ratio and the set phase difference,
• the transmitter transmits the generated transmission signal as an electric wave from a transmission antenna,
• the receiver receives the electric wave by a reception antenna, and converts a reception signal of the received electric wave into a complex signal, and
• the receiver restores the transmission bit information by comparing a constellation point of the complex signal with a constellation defined for the conversion using the intensity ratio and the phase difference, based on the constellation.

A transmitter in a communication system including the transmitter and a receiver,

• wherein the transmitter sets an intensity ratio and a phase difference between bases defined by two orthogonal modes, based on transmission bit information,
• the transmitter generates a transmission signal by converting the transmission bit information by using the set intensity ratio and the set phase difference,
• the transmitter transmits the generated transmission signal as an electric wave from a transmission antenna,
• the receiver receives the electric wave by a reception antenna, and converts a reception signal of the received electric wave into a complex signal, and
• the receiver restores the transmission bit information by comparing a constellation point of the complex signal with a constellation defined for the conversion using the intensity ratio and the phase difference, based on the constellation.

A receiver in a communication system including a transmitter and the receiver,

• wherein the transmitter sets an intensity ratio and a phase difference between bases defined by two orthogonal modes, based on transmission bit information,
• the transmitter generates a transmission signal by converting the transmission bit information by using the set intensity ratio and the set phase difference,
• the transmitter transmits the generated transmission signal as an electric wave from a transmission antenna,
• the receiver receives the electric wave by a reception antenna, and converts a reception signal of the received electric wave into a complex signal, and
• the receiver restores the transmission bit information by comparing a constellation point of the complex signal with a constellation defined for the conversion using the intensity ratio and the phase difference, based on the constellation.