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On the construction of a class of majority-logic decodable codes

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2 Author(s)
Kasami, T. ; Graduate Sch. of Inf. Sci., Nara Inst. of Sci. & Technol., Nara, Japan ; Shu Lin

The attractiveness of majority-logic decoding is its simple implementation. Several classes of majority-logic decodable block codes have been discovered for the past two decades. In this paper, a method of constructing a new class of majority-logic decodable block codes is presented. Each code in this class is formed by combining majority-logic decodable codes of shorter lengths. A procedure for orthogonalizing codes of this class is formulated. For each code, a lower bound on the number of correctable errors with majority-logic decoding is obtained. An upper bound on the number of orthogonalization steps for decoding each code is derived. Several majority-logic decodable codes that have more information digits than the Reed-Muller codes of the same length and the same minimum distance are found. Some results presented in this paper are extensions of the results of Lin and Weldon [11] and Gore [12] on the majority-logic decoding of direct product codes.

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Information Theory, IEEE Transactions on  (Volume:17 ,  Issue: 5 )