METHOD FOR ENCODING, DATA-RESTRUCTURING AND REPAIRING PROJECTIVE SELF-REPAIRING CODES
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United States of America Patent
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Apr 20, 2015
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Oct 19, 2012
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Abstract
A method for encoding, data-restructuring and repairing projective self-repairing codes is provided. The method comprises the following steps: equally dividing original data; setting base finite fields which have an inclusion relation according to parameters of the equally divided data: a first finite field and a second finite field; partitioning a space constructed of B/C-dimensional vectors with its subgroup coset and choosing B/C subspaces among the subspaces, each chosen subspace corresponding to a storage node; arraying vectors of the B/C subspaces to obtain an encoding matrix; and according to each storage node's encoding vectors, obtaining encoding data stored therein, and storing the encoding data into the storage node.
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