On the Growth Rate of
نویسنده
چکیده
Let C be a rate (n ? r)=n convolutional code with canonical parity-check matrix H(D), and let w 0 denote the minimum average weight per edge over all nonzero cycles in the state diagram for C. The rate of growth per edge of the minimum distance between two nonmerged codewords is given by the value of w 0. For any code C, we show how to obtain an upper bound on w 0 from the columns of H(D). Index Terms|convolutional codes, minimum average weight per edge.
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تاریخ انتشار 1999