Twelve good rate (m-r)/pm quasi-cyclic codes

TitleTwelve good rate (m-r)/pm quasi-cyclic codes
Publication TypeJournal Article
Year of Publication1993
AuthorsGulliver, T. A., and V. K. Bhargava
JournalInformation Theory, IEEE Transactions on
Pagination1750 -1751
Date Publishedsep.
Keywordsbinary linear codes, bounds, circulant matrices, cyclic codes, heuristic combinatorial optimization, matrix algebra, optimisation, quasicyclic codes

Twelve new quasi-cyclic (QC) codes are presented which improve the bounds on the best known binary linear codes. They are rate (m-r)/pm, r gt;1, codes constructed by deleting r rows from the circulant matrices of rate m/pm QC codes, based on the factors of xm-1. Heuristic combinatorial optimization was used to find these codes


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