ROTATIONAL INVARIANCE OF 2-LEVEL GROUP CODES OVER DIHEDRAL AND DICYCLIC GROUPS

Authors
BALI J RAJAN BS
Citation
J. Bali et Bs. Rajan, ROTATIONAL INVARIANCE OF 2-LEVEL GROUP CODES OVER DIHEDRAL AND DICYCLIC GROUPS, Sadhana, 23, 1998, pp. 45-56
Citations number
26
Categorie Soggetti
Engineering
Journal title
Sadhana → ACNP
ISSN journal
02562499
Volume
23
Year of publication
1998
Part
1
Pages
45 - 56
Database
ISI
SICI code
0256-2499(1998)23:<45:RIO2GC>2.0.ZU;2-Y
Abstract
Phase-rotational invariance properties for two-level constructed, (usi ng a binary code and a code over a residue class integer ring as compo nent codes) Euclidean space codes (signal sets) in two and four dimens ions are discussed. The label codes are group codes over dihedral and dicyclic groups respectively. A set of necessary and sufficient condit ions on the component codes is obtained for the resulting signal sets to be rotationally invariant to several phase angles.