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arXiv 1708.06012cs.ITmath.IT
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辅助数可变的乘积矩阵最小存储再生码

Product Matrix Minimum Storage Regenerating Codes with Flexible Number of Helpers

Kaveh Mahdaviani, Soheil Mohajer, Ashish Khisti

摘要:

在分布式存储系统的编码中,通过访问预定义数量的任意选择的存储节点来保证有效的数据重建和修复,通过重新生成代码。传统上,代码参数,特别是参与修复过程的帮助节点的数量是预定的。然而,取决于系统和网络业务的状态,期望相应地调整这样的参数,以便最小化修复成本。在这项工作中,一类再生代码的最小存储量的介绍,可以同时操作在最佳的修复带宽,广泛的确切的修复机制,根据不同数量的帮助节点。

英文摘要:

In coding for distributed storage systems, efficient data reconstruction and repair through accessing a predefined number of arbitrarily chosen storage nodes is guaranteed by regenerating codes. Traditionally, code parameters, specially the number of helper nodes participating in a repair process, are predetermined. However, depending on the state of the system and network traffic, it is desirable to adapt such parameters accordingly in order to minimize the cost of repair. In this work a class of regenerating codes with minimum storage is introduced that can simultaneously operate at the optimal repair bandwidth, for a wide range of exact repair mechanisms, based on different number of helper nodes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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