Rate region of the (4, 3, 3) exact-repair regenerating codes

  title={Rate region of the (4, 3, 3) exact-repair regenerating codes},
  author={Chao Tian},
  journal={2013 IEEE International Symposium on Information Theory},
Exact-repair regenerating codes are considered for the case (n, k, d) = (4, 3,3), for which a complete characterization of the rate region is provided. This characterization answers in the affirmative the open question whether there exists a non-vanishing gap between the optimal bandwidth-storage tradeoff of the functional-repair regenerating codes (i.e., the cut-set bound) and that of the exact-repair regenerating codes. The converse proof relies on the existence of symmetric optimal solutions… CONTINUE READING
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tributed storage codes with repair - by - transfer and non - achievability of interior points on the storage - bandwidth tradeoff

  • K. V. Rashmi Shah, P. V. Kumar, K. Ramchandran
  • IEEE Trans on Information Theory

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