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Simple algorithms for BCH decoding

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2 Author(s)
J. Hong ; Dept. of Electr. Eng., Columbia Univ., New York, NY, USA ; M. Vetterli

Proposes some simple algorithms for decoding BCH codes. The authors show that the pruned FFT is an effective method for evaluating syndromes and for finding the roots of error-locator polynomials. They show that a simple variation of the basic Gaussian elimination procedure can be adapted to compute the error-locator polynomial efficiently for codes with small designed distance. Finally, they give a procedure for computing the error values that has half the complexity of the Forney algorithm

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IEEE Transactions on Communications  (Volume:43 ,  Issue: 8 )