Parallel concatenated trellis coded modulation with automatic repeat request for ADSL applications

Author

Antoine, Ph

Author_Institution

Alcatel Corp. Res. Center, Antwerp, Belgium

Volume

2

fYear

2000

fDate

2000

Firstpage

1075

Abstract

The paper presents a parallel concatenated trellis coded modulation (PCTCM) scheme for ADSL applications. Automatic repeat request (ARQ) is used to remove the inherent error floor of PCTCM. This makes the system robust against impulse noise even if the delay is significantly lowered with respect to the current ADSL FEC scheme. A reduced-search algorithm is exploited to lower the computational complexity. This hybrid PCTCM-ARQ unites high coding gain with low delay, robustness against impulse noise and a complexity comparable to that of ADSL

Keywords

automatic repeat request; computational complexity; concatenated codes; delays; digital subscriber lines; error statistics; impulse noise; search problems; trellis coded modulation; ADSL; PCTCM; automatic repeat request; coding gain; complexity; computational complexity; error floor; hybrid PCTCM-ARQ; impulse noise; low delay robustness; parallel concatenated trellis coded modulation; reduced-search algorithm; Automatic repeat request; Bandwidth; Concatenated codes; Convolutional codes; Delay; Forward error correction; Modulation coding; Noise robustness; Throughput; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2000. ICC 2000. 2000 IEEE International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-6283-7

Type

conf

DOI

10.1109/ICC.2000.853663

Filename

853663