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On The Construcion of Geometrically Uniform Codes with LXMPSK Constellations
The Cuong DINH
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/03/25
Print ISSN: 0916-8508
Type of Manuscript: Category: Information Theory and Coding Theory
trellis coded modulation (TCM), geometrically uniform codes, multidimensional (MD) constellations, permutations,
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For L 2, M 8, and transmission rate R = (log2M-1) bit/sym, a method for constructing GU trellis codes with L MPSK constellations is proposed and it is shown that the maximally achievable free distance is twice larger than it was previously reported for GU codes. Basides being geometrically uniform, these codes perform as good as Pietrobon's non-GU trellis codes with multidimensional MPSK constellations.