Rack-Aware Regenerating Codes With Multiple Erasure Tolerance
文献类型：期刊论文
| 作者 | Zhou, Liyang1,2; Zhang, Zhifang1,2 |
| 刊名 | IEEE TRANSACTIONS ON COMMUNICATIONS
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 70期号:7页码:4316-4326 |
| 关键词 | Maintenance engineering Codes Bandwidth Symbols Costs Systematics Encoding Regenerating code rack-aware storage repair bandwidth |
| ISSN号 | 0090-6778 |
| DOI | 10.1109/TCOMM.2022.3175826 |
| 英文摘要 | We study the rack-aware storage system where all storage nodes are organized in racks and within each rack the nodes can communicate freely without taxing the system bandwidth. Rack-aware regenerating codes (RRCs) were proposed for minimizing the repair bandwidth for single erasures. In the initial setting of RRCs, the repair of a single node requires the participation of all the remaining nodes in the rack containing the failed node as well as a large number of helper racks containing no failures. Consequently, the repair may be infeasible in front of multiple node failures. In this work, a relaxed repair model that can tolerate multiple node failures by simultaneously reducing the intra-rack connections and cross-rack connections is proposed. A tradeoff between the storage and repair bandwidth under the relaxed repair model is derived, and parameters of the two extreme points on the tradeoff curve are characterized for the minimum storage and minimum bandwidth respectively. Moreover, two codes corresponding to the extreme points are explicitly constructed over the fields of size comparable to the code length and with the lowest sub-packetization. Finally, for the convenience of practical use, systematic encoding processes for the two codes are also established. |
| 资助项目 | National Key R&D Program of China[2020YFA0712300] ; NSFC[61872353] ; CAS Project for Young Scientists in Basic Research |
| WOS研究方向 | Engineering ; Telecommunications |
| 语种 | 英语 |
| WOS记录号 | WOS:000828695900006 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/61154]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Zhou, Liyang |
| 作者单位 | 1.Chinese Acad Sci, Acad Math & Syst Sci, KLMM, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Liyang,Zhang, Zhifang. Rack-Aware Regenerating Codes With Multiple Erasure Tolerance[J]. IEEE TRANSACTIONS ON COMMUNICATIONS,2022,70(7):4316-4326. |
| APA | Zhou, Liyang,&Zhang, Zhifang.(2022).Rack-Aware Regenerating Codes With Multiple Erasure Tolerance.IEEE TRANSACTIONS ON COMMUNICATIONS,70(7),4316-4326. |
| MLA | Zhou, Liyang,et al."Rack-Aware Regenerating Codes With Multiple Erasure Tolerance".IEEE TRANSACTIONS ON COMMUNICATIONS 70.7(2022):4316-4326. |
入库方式： OAI收割
来源：数学与系统科学研究院
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