Speed and power self-adaptation method based on physical layer network coding

• Main Authors: YU YAO, WANG FANZHAO, SONG QINGYANG, LIU YA, PENG YUHUAI, WU KAILAI
• Format: Patent
• Language: English
• Published: 22.04.2015
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a speed and power self-adaptation method based on physical layer network coding and belongs to the technical field of communication networks. The method includes the steps that firstly, network transmission conditions are set, signals are sent, then the relation among the bit error rate, the transmission power and the transmission speed which are obtained after decoding is constructed according to the signals received by a receiving end, a signal transmission first time slot is constructed according to the relation of the bit error rate, the transmission power and the transmission speed, when the signal transmission speed is fixed, the constraint condition of the transmission power is optimized, and finally the signal transmission first time slot, the optimal signal transmission rate, the optimal transmitting power set of a transmitting end and the optimal transmission speed of a signal transmission second time slot are obtained and set to be fixed values in network data transmission. According to the speed and power self-adaptation method, under the condition of reasonable time delay, the network throughput is improved, the transmission time delay is shortened, the signal transmission time is shortened, the effectiveness of the network is ensured, the speed and power self-adaptation method is suitable for various network environments in which a PNC can be adopted, and the speed and power self-adaptation method has large practical value in practical network transmission.