2015/12/15 by Shuo Shao, Shao, Shuo, Tie Liu +4
Computer Science · Mathematics · #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Information Theory (cs.IT) #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1512.04794
7 pages 2 figures
arxiv created 2015/12/15 · openalex publication_date 2015/12/15 · arxiv updated 2015/12/16 · openalex created_date 2022/10/07 · openalex updated_date 2026/07/28
The problem of multilevel diversity coding with regeneration is considered in this work. Two new outer bounds on the optimal tradeoffs between the normalized storage capacity and repair bandwidth are established, by which the optimality of separate coding at the minimum-bandwidth-regeneration (MBR) point follows immediately. This resolves a question left open in a previous work by Tian and Liu.