基于干扰对齐的高效云存储方法研究综述

Survey of efficient cloud storage method based on interference alignment

云存储/分布式存储主要靠存储冗余和高效的节点修复机制保障其可靠性。将干扰对齐技术引入到云存储的节点修复问题中,利用干扰对齐可以将节点修复时传输的干扰数据压缩到较小的空间维度中,使待修复节点所需的期望数据维度较大,在保证高可靠性的同时降低修复开销,节约云存储成本。首先介绍了云存储/分布式存储中的节点修复问题,然后对干扰对齐在云存储/分布式存储中的重要意义和国内外的研究进展进行了阐述,最后分析了存在的主要问题和下一步研究重点。

Cloud storage/distributed storage mainly depends on the storage redundancy and efficient nodes repair mechanisms to protect the reliability.In order to reduce the repair cost of bandwidth and storage space,the technology of interference alignment is used to fix the problem of repairing nodes in a cloud storage system.Interference alignment can compression interference data which used to repair nodes to smaller spatial dimensions,make the desired data dimensions that pending repair nodes required for be bigger,ensure high reliability while reducing repair cost,saving the cost of cloud storage.First this paper introduced the problems of repairing nodes in a distributed storage system.Then it elaborated the importance of interference alignment in distributed storage and domestic and international progress.Finally it analysed of the main problems and future research priorities.