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DCm codes for constructing t-EC/AUED codes

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2 Author(s)
Ching-Nung Yang ; Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan ; Chi-Sung Laih

A common method for constructing t-error correcting/all unidirectional error detecting (t-EC/AUED) codes is to append a tail to t-EC code, where the tail is a function of the weight of the codeword. Here, we present a method to reduce the weight distribution of t-EC codes by using a DCm(k+d, k) code as the input of t-EC code where a DCm(k+d, k) code is of length k+dnd 2k codewords with the weight distribution between [(k+d-m)/2] and [(k+d+m)/2]. It is shown that our t-EC/AUED codes have the better information rates than the previously developed codes due to the smaller tails

Published in:

Computers, IEEE Transactions on  (Volume:47 ,  Issue: 4 )