On punctured trellis coded modulation

Author

Kim, Jaehyeong ; Pottie, Gregory J.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

2

fYear

1995

fDate

18-22 Jun 1995

Firstpage

678

Abstract

Punctured convolutional codes result in some savings in the complexity of Viterbi decoders, compared to other codes of the same rate. However, in general use of the punctured structure in the decoder results in a performance loss for trellis codes, due to difficulties in assigning metrics. The authors provide constructions for punctured rate-2/3 codes based on decomposition of the metric into orthogonal components. These show no loss in performance for trellis coded QAM and PSK

Keywords

Viterbi decoding; computational complexity; convolutional codes; frequency shift keying; quadrature amplitude modulation; trellis coded modulation; Viterbi decoders; complexity; decomposition; metrics; orthogonal components; performance loss; punctured rate-2/3 codes; punctured structure; punctured trellis coded modulation; trellis coded PSK; trellis coded QAM; Constellation diagram; Convolution; Convolutional codes; Decoding; Modulation coding; Performance loss; Phase shift keying; Quadrature amplitude modulation; Redundancy; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2486-2

Type

conf

DOI

10.1109/ICC.1995.524190

Filename

524190