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| Content Provider | Springer Nature Link |
|---|---|
| Author | Liang, SongTao Liang, WenJuan Kan, HaiBin |
| Copyright Year | 2015 |
| Abstract | Regenerating codes is one class of erasure codes for distributed storage. A [n, k, d, α, β] regenerating code can recover the original message from any k out of n distributed storage nodes and repair any failed node from other arbitrary d nodes. α is the number of symbols stored in one node and β is the number of symbols downloaded by a newcomer node. Minimum storage regenerating (MSR) code is a regenerating code attaining the minimal storage requirement. In this paper, we address the design of a special MSR code where α = 2 and the first fragment of a node stores original symbol (we call it hybrid systematic MSR code or HS-MSR code). We point out that there exists no exact-repair construction when k ⩾ 5. A simple exact linear construction is given when k = 2. Furthermore, by relaxing the condition of connecting any d nodes, we investigate the properties of quasi-cyclic regenerating code and propose a unified construction such that when k ⩾ 3, repairing process can be achieved with less repair bandwidth by repair-by-transfer form. |
| Starting Page | 1 |
| Ending Page | 10 |
| Page Count | 10 |
| File Format | |
| ISSN | 1674733X |
| Journal | Science in China Series : Information Sciences |
| Volume Number | 58 |
| Issue Number | 6 |
| e-ISSN | 18691919 |
| Language | English |
| Publisher | Science China Press |
| Publisher Date | 2015-04-15 |
| Publisher Place | Beijing |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | array codes distributed storage network coding maximum-distance-separable(MDS) codes minimum storage regenerating(MSR) codes Information Systems and Communication Service |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Science |
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