Construction of good space-time trellis codes based on cyclic codes over rings

Raquel Dutra Valença; Reginaldo Palazzo Jr.

doi:10.14209/its.2002.215

Construction of good space-time trellis codes based on cyclic codes over rings

Raquel Dutra Valença, Reginaldo Palazzo Jr.

DOI: 10.14209/its.2002.215

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"In this paper, we propose a systematic procedure for constructing good space-time trellis codes derived from cyclic BCH codes over local finite commutative rings. The procedure is based on finding a primitive element in the group of units of the Galois extension ring. For a given design distance, the polynomial generator of a BCH cyclic block code over Q is determined. Such a generator polynomial must contain no binary factor. Hence, the coefficients of the generator polynomial is used as the tap connections for the Q-ary convolutional encoder. Some examples of these codes were tabulated."

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