12 GOOD RATE (M-R) PM QUASI-CYCLIC CODES

Authors
GULLIVER TA BHARGAVA VK
Citation
Ta. Gulliver et Vk. Bhargava, 12 GOOD RATE (M-R) PM QUASI-CYCLIC CODES, IEEE transactions on information theory, 39(5), 1993, pp. 1750-1751
Citations number
6
Categorie Soggetti
Mathematics,"Engineering, Eletrical & Electronic
Journal title
IEEE transactions on information theory → ACNP
ISSN journal
00189448
Volume
39
Issue
5
Year of publication
1993
Pages
1750 - 1751
Database
ISI
SICI code
0018-9448(1993)39:5<1750:1GR(PQ>2.0.ZU;2-B
Abstract
Twelve new quasi-cyclic (QC) codes are presented which improve the bou nds on the best known binary linear codes. They are rate (m - r)/pm, r > 1, codes constructed by deleting r rows from the circulant matrices of rate m/pm QC codes, based on the factors of x(m)-1. Heuristic comb inatorial optimization was used to find these codes.