Iterative Viterbi algorithm for concatenated multidimensional TCM

Author

Wang, Qi ; Wei, Lei

Author_Institution

Inst. for Telecommun. Res., Univ. of South Australia, Adelaide, SA, Australia

Volume

50

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

12

Lastpage

15

Abstract

A novel compound code is designed for the multidimensional (M-D) Wei (1987) trellis code combined with a simple parity-check code. Using the iterative Viterbi decoding algorithm, we can achieve a remarkable performance improvement with low computational complexity. Simulation results show that at a bit error rate (BER) of 3.7 × 10^-6 about 2.2-dB additional net gain has been obtained over the conventional scheme of the 4-D 16-state Wei code at a spectral efficiency of 6.7871 bit/T

Keywords

Viterbi decoding; computational complexity; concatenated codes; error statistics; iterative decoding; trellis coded modulation; trellis codes; BER; bit error rate; compound code; concatenated multidimensional TCM; inner code; iterative Viterbi decoding algorithm; low computational complexity; multidimensional Wei trellis code; outer code; parity-check code; simulation results; spectral efficiency; Bit error rate; Computational complexity; Computational modeling; Concatenated codes; Convolutional codes; Iterative algorithms; Iterative decoding; Multidimensional systems; Parity check codes; Viterbi algorithm;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.975736

Filename

975736