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第一作者：张引

通讯作者：赵玉丽

合写作者：Francis C. M. Lau,张斌,朱志良,于海

发表刊物：IET Communications

DOI码：10.1049/cmu2.12462

摘要：By combining bit-shift and exclusive-or operations, a weighted zigzag decodable fountain code is proposed to achieve an unequal error protection property. In the proposed scheme, the input symbols of different importance levels are first pre-coded into variable nodes using low-density parity-check codes. Then, bit-shift operations prior to exclusive-or are performed on the non-uniformly selected variable nodes to generate encoded symbols. An analysis of the erasure probabilities based on the and-or tree is further introduced. Simulation results show that by appropriately choosing the maximum bit-shift amount, the proposed weighted zigzag decodable fountain codes can successfully recover the more important input symbols prior to the less important ones.

论文类型：SCI JCR Q3

是否译文：否