| 摘要 |
The present invention relates to a transmitter, a receiver, and a system for relay communications using an isotropic orthogonal transform algorithm prototype and an offset quadrature amplitude modulation. The system for relay communications comprises: a source node for transmitting a real component of a first OQAM symbol carried on a first subcarrier in a first cycle and transmitting an imaginary component of a first OAQM symbol carried on the first subcarrier in the next cycle of the first cycle; a relay node for demodulating a signal received from the source node in a second cycle and forwarding the demodulated signal in the next cycle of the second cycle; and a receiving node for demodulating the signal, which is transmitted from the source node and received in a third cycle, and the signal, which is forwarded from the relay node and received in the next cycle of the third cycle, into one OQAM symbol. The system of the present invention can reduce interference between the signal, which is forwarded through the relay node and transmitted to a destination node, and the signal, which is directly transmitted from the source node to the destination node, and improve communication quality in the relay communications. |
