Trellis-based iterative decoding of block codes for satellite ATM

Author

Vilaipornsawai, U. ; Soleymani, M.R.

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

5

fYear

2002

fDate

2002

Firstpage

2947

Abstract

In this paper, block turbo codes (BTCs) with trellis-based decoding are proposed for use in digital video broadcasting-return channel via satellite (DVB-RCS) for ATM transmission. Reed-Muller (RM) codes are used as the component codes. The BTCs are shortened in order to accommodate a satellite ATM cell. It is shown that different shortening patterns can be used. In some cases, the codes have unequal error protection (UEP) property. In order to test the suitability of the proposed coding scheme from a practical point of view, the effect of channel impairment, channel signal to noise ratio (SNR) mismatch, is investigated. Simulation results for RM-turbo codes and shortened turbo codes are presented over AWGN and Rayleigh-fading channels. The performance of the shortened codes with different shortening patterns and with the effect of channel SNR mismatch are shown.

Keywords

AWGN channels; Rayleigh channels; Reed-Muller codes; asynchronous transfer mode; block codes; channel coding; digital video broadcasting; direct broadcasting by satellite; iterative decoding; trellis codes; turbo codes; AWGN channels; BTCs; DVB-RCS; RM codes; RM-turbo codes; Rayleigh-fading channels; Reed-Muller codes; SNR; UEP; block code; block turbo codes; channel impairment; channel signal to noise ratio mismatch; digital video broadcasting-return channel via satellite; satellite ATM; shortened turbo codes; shortening patterns; trellis-based decoding; trellis-based iterative decoding; unequal error protection; AWGN; Block codes; Digital video broadcasting; Error correction codes; Iterative decoding; Rayleigh channels; Satellite broadcasting; Signal to noise ratio; Testing; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2002. ICC 2002. IEEE International Conference on

Print_ISBN

0-7803-7400-2

Type

conf

DOI

10.1109/ICC.2002.997380

Filename

997380