Communication method based on fountain codes and physical layer network coding

The invention relates to the wireless communication technical field, specifically relates to a communication method based on fountain codes and physical layer network coding. In adoption of the method of the invention, the performance of a wireless communication system can be further improved; the network throughput of the communication system can be improved; the bit error rate of the communication system can be reduced; and the problems such as reducing the spectral efficiency, channel congestion and reducing the transmitting efficiency resulted from enhancing the communication reliability in an ARQ (Automatic Repeat Request) or FEC (Forward Error Correction) technique can be avoided. According to the communication method of the invention, Raptor coding is carried out to source node signals at a first time slot; Raptor decoding and physical layer network coding are carried out to mixed signals at a second time slot; broadcasting is carried out; finally each source node is reduced; the signals of the opposit