Research Article
Low Overhead Growth Degree Coding Scheme for Online Fountain Codes with Limited Feedback
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@INPROCEEDINGS{10.1007/978-3-030-93398-2_43, author={Pengcheng Shi and Zhenyong Wang and Dezhi Li}, title={Low Overhead Growth Degree Coding Scheme for Online Fountain Codes with Limited Feedback}, proceedings={Wireless and Satellite Systems. 12th EAI International Conference, WiSATS 2021, Virtual Event, China, July 31 -- August 2, 2021, Proceedings}, proceedings_a={WISATS}, year={2022}, month={1}, keywords={Online fountain codes Feedback Overhead analysis Rateless codes}, doi={10.1007/978-3-030-93398-2_43} }- Pengcheng Shi
Zhenyong Wang
Dezhi Li
Year: 2022
Low Overhead Growth Degree Coding Scheme for Online Fountain Codes with Limited Feedback
WISATS
Springer
DOI: 10.1007/978-3-030-93398-2_43
Abstract
A new growth degree encoding scheme (GDS) for online fountain codes is proposed to achieve a low overhead when the feedback is limited. When the feedback points are determined at the completion phase, the encoder sends coded symbols with growth degrees between the two feedback points, rather than symbols with fixed degrees. This increases the effective probability of the coded symbols, thereby reducing the overall overhead. We analyze the overhead of the proposed scheme to demonstrate the performance. Simulation results show that our proposed scheme has better overhead performance compared to the conventional online fountain codes with limited feedback.
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