Convolutional network coding transmission method based on unequal redundancy insertion

The invention discloses a convolutional network coding transmission method based on unequal redundancy insertion, which mainly solves the problems of large time delay and incapability of coping with wireless channel burst errors in the prior art. The method comprises the steps of uniformly grouping and coding all data packets to be sent; carrying out convolutional network coding on the coded data packet and sending the coded data packet to a wireless channel; judging and recording whether the group of data packets can be correctly decoded or not according to whether the coded data packets extracted by the receiving end are full-rank or not; dynamically adjusting the number of redundant packets added into the current group according to the recording condition; extracting the L groups of coded data packets and calculating the DOF of the coded data packets by the receiving end; generating and sending DOF retransmission data packets; and decoding the extracted coded data packet, and recording the decoding moment