A multi-node exact repair method in cloud storage based on interference alignment

作者：Xie Xian Zhong^*; Huang Qian; Wang Liu Su; Ma Bin

来源：Acta Electronica Sinica, 2014, 42(10): 1873-1881.

DOI：10.3969/j.issn.0372-2112.2014.10.001

• Cauchy matrix
• Cloud storages
• Data reconstruction
• Generator matrix
• Interference alignment
• Regenerating codes
• Repair methods
• Storage nodes

We proposed a Multi-node exact Minimum Storage Regenerating code (MMSR code) based on interference alignment which is satisfying MDS nature. First, we designed the generator matrix of the storage nodes of MMSR code by Cauchy matrix, for the purposes that using interference alignment technology and repair multi-node simultaneously. Then we discussed the advantages and disadvantages of the synchronous repair mode and asynchronous repair mode. Finally, we proved the MDS nature of MMSR code and proposed a specific data reconstruction scheme for the (7, 3, 5)-MMSR code to verify the MDS nature and feasibility of MMSR code.

• 出版日期2014