Update-efficient codes for erasure correction

  title={Update-efficient codes for erasure correction},
  author={Nagaraj Prasanth Anthapadmanabhan and Emina Soljanin and Sriram Vishwanath},
  journal={2010 48th Annual Allerton Conference on Communication, Control, and Computing (Allerton)},
The problem of designing codes to protect against server failures in a distributed storage system for frequently changing data is considered. When the original data changes, the coded packets stored on the servers must be updated accordingly. Since performing updates consumes costly bandwidth and energy, it is of interest to construct codes that have small update complexity, which we define as the maximum number of coded symbols that must be updated when any single information symbol is changed… CONTINUE READING
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