A Class of Cocyclic Quasi Jacket Block Matrix

Moon Ho LEE  Subash Shree POKHREL  Wen Ping MA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E90-A   No.12   pp.2945-2948
Publication Date: 2007/12/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e90-a.12.2945
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
cocyclic matrices,  Jacket matrices,  Hadamard matrices,  low-density matrices,  

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In this letter, we present quasi-Jacket block matrices over GF(2), i.e., binary matrices which all are belong to a class of cocyclic matrices. These matrices are may be useful in digital signal processing, CDMA, and coded modulation. Based on Circular Permutation Matrix (CPM) cocyclic quasi-Jacket block low-density matrix is introduced in this letter which is useful in coding theory. Additionally, we show that the fast algorithm of quasi-Jacket block matrix.