Turbo coding for transmission over ADSL

Author

Zhang, Liang ; Yongacoglu, Abbas

Author_Institution

Sch. of Inf. Technol. & Eng., Ottawa Univ., Ont., Canada

Volume

1

fYear

2000

fDate

2000

Firstpage

124

Abstract

A multidimensional 16-state trellis coded modulation (MTCM) is given as an option in the asymmetric digital subscriber line (ADSL) standard based on discrete multitone (DMT) techniques. To further improve the transmission performance, instead of this MTCM, we propose to use bandwidth-efficient turbo trellis coded modulation (TTCM) in ADSL DMT systems. We show that by using turbo codes, we can obtain 6 dB coding gain for a bit error rate (BER) of 10^-6 in AWGN channels and more than 6.8 dB coding gain for a BER of 10^-7 using a concatenated coding scheme

Keywords

AWGN channels; channel coding; concatenated codes; digital subscriber lines; error statistics; trellis coded modulation; turbo codes; ADSL standard; AWGN channels; BER; DMT techniques; asymmetric digital subscriber line; bit error rate; concatenated coding; discrete multitone techniques; transmission performance; turbo coding; turbo trellis coded modulation; AWGN channels; Bit error rate; Code standards; DSL; Digital modulation; Gain; Modulation coding; Multidimensional systems; OFDM modulation; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-6394-9

Type

conf

DOI

10.1109/ICCT.2000.889181

Filename

889181