A novel rateless coding scheme with gradually incremental degree under feedback

The rateless code is widely used as a forward error correction solution. This paper proposes a novel rateless coding scheme with a Gradually Incremental Degree (GID) which is based on Robust Soliton Distribution used in Luby Transform (LT) code. With the feedback information, the proposed scheme significantly reduces the average degree of encoding symbols, as well as maintains the performance of the rateless code. Moreover, a degree distribution of the proposed rateless coding scheme is addressed to reduce the computational complexity. Simulation results show that the proposed rateless coding scheme with GID achieves a lower average degree than that of the standard LT code under the same coding overhead.