Multi-node wireless broadcasting retransmission scheme based on network coding

Retransmission is an important technique to ensure the error correction of wireless broadcasting.The combination between network coding and wireless broadcasting scheme was extended to the multi-node mode.The combination strategy of multi-node based on network coding was studied.By combining several packets,the retransmission was accomplished.One retransmission with coding packets could achieve the goal for numerous original retransmissions.Simulation results indicate that compared with existing schemes,the proposed scheme can effectively reduce the average number of transmissions and is feasible and effective.