2012/04/30 by Chen Zhao, Zhao Chen, Liuguo Yin +3
Computer Science · Mathematics · #Advanced Data Compression Techniques #Algorithm #Artificial intelligence #Block code #Computer engineering #Computer science #Concatenated error correction code #Decoding methods #Dependency (UML) #Encoding (memory) #Error Correcting Code Techniques #Layer (electronics) #Online codes #Overhead (engineering) #Redundancy (engineering) #Video Coding and Compression Technologies #cs.IT #cs.MM #math.IT
paper · pdf · doi:10.1109/vtcfall.2012.6399047
arxiv created 2012/06/13 · openalex publication_date 2012/09/01 · arxiv updated 2017/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
This paper proposes a novel approach, based on unequal error protection, to enhance rateless codes with progressive recovery for layered multimedia delivery. With a parallel encoding structure, the proposed Progressive Rateless codes (PRC) assign unequal redundancy to each layer in accordance with their importance. Each output symbol contains information from all layers, and thus the stream layers can be recovered progressively at the expected received ratios of output symbols. Furthermore, the dependency between layers is naturally considered. The performance of the PRC is evaluated and compared with some related UEP approaches. Results show that our PRC approach provides better recovery performance with lower overhead both theoretically and numerically.