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Repair of Multiple Descriptions on Distributed Storage
Cited 2 time in
Web of Science
Cited 1 time in Scopus
- Authors
- Issue Date
- 2020-10
- Publisher
- IEEE
- Citation
- PROCEEDINGS OF 2020 INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY AND ITS APPLICATIONS (ISITA2020), pp.245-249
- Abstract
- In multiple descriptions on distributed storage, a source is stored in a shared fashion on multiple servers. When a subset of servers are contacted, the source should be estimated with a certain maximum distortion depending on the number of servers. The problem considered in this paper is how to restore the system operation when one of the servers fail and a new server replaces it, that is, repair. The requirement is that the distortions in the restored system should be no more than in the original system. The question is how many extra bits are needed for repair. We find the optimum solution for a two server problem in the Gaussian case, and an achievable rate for general rt nodes. One conclusion is that it is necessary to design the multiple description codes with repair in mind.
- ISSN
- 2689-5838
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