Block turbo codes for multicarrier local loop transmission

Author

Vanstraceele, C. ; Geller, B. ; Barbot, J.-P. ; Brossier, J.M.

Author_Institution

SATIE-ENS Cachan, France

Volume

3

fYear

2002

fDate

2002

Firstpage

1773

Abstract

We investigate the performance of different block turbo codes in the context of Enhanced VDSL. We first describe the VDSL system used in our simulation link. We then propose an iterative decoding algorithm based on Pyndiah´s (1998) SISO decoder for product turbo block codes that can be implemented with reasonable complexity. We also illustrate several results for various QAM modulation schemes. The coding gains obtained for the different codes and modulations then allow us to predict the attainable bit rates as a function of the line length. We show that such a turbo block decoding outperforms the classical Reed Solomon hard decoding used in the ADSL system.

Keywords

BCH codes; Reed-Solomon codes; block codes; digital subscriber lines; error statistics; iterative decoding; product codes; quadrature amplitude modulation; turbo codes; ADSL system; BCH codes; BER; Enhanced VDSL; QAM; Reed Solomon hard decoding; SISO decoder; VDSL system; bit rates; block turbo codes; coding gain; crosstalk; digital subscriber loop; iterative decoding algorithm; line length; multicarrier local loop transmission; product turbo block codes; simulation link; turbo block decoding; Bit rate; Crosstalk; Iterative algorithms; Iterative decoding; Modulation coding; OFDM modulation; Quadrature amplitude modulation; Reed-Solomon codes; Signal to noise ratio; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th

ISSN

1090-3038

Print_ISBN

0-7803-7467-3

Type

conf

DOI

10.1109/VETECF.2002.1040521

Filename

1040521