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Geometrical uniformity of a class of space-time trellis codes | IEEE Journals & Magazine | IEEE Xplore
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Geometrical uniformity of a class of space-time trellis codes


Abstract:

The continued relevance of the Euclidean distance in (flat) fading scenarios renders meaning to distance preserving properties for codes designed for fading channels. Geo...Show More

Abstract:

The continued relevance of the Euclidean distance in (flat) fading scenarios renders meaning to distance preserving properties for codes designed for fading channels. Geometrical uniformity can shed more light on the structure of various techniques for jointly encoding across multiple transmit antennas, and can assist in the design of, or systematic search for, better coding schemes. In this correspondence, a family of space-time codes introduced by Ionescu et al. is treated as signal space codes, then proved to be generalized coset codes, and thereby geometrically uniform. It is then shown that geometrical uniformity does remain meaningful in fading channels, for an optimally designed space-time code.
Published in: IEEE Transactions on Information Theory ( Volume: 50, Issue: 12, December 2004)
Page(s): 3343 - 3347
Date of Publication: 31 December 2004

ISSN Information:


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