Ruixiong Tian, Zhe Xiang, et al.
Qinghua Daxue Xuebao/Journal of Tsinghua University
Paper
Some Convolutional Codes Whose Free Distances are Maximal
Abstract
The free distance of a convolutional code of rate 1/n is bounded by n times the constraint length of its encoder. Two classes of convolutional codes whose free distances meet this bound are studied. A technique of constructing convolutional codes that meet this bound for all sufficiently large n is also given. © 1989 IEEE
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