Publication detail

Time Domain Equalisation for ADSL Technology and its Optimization

SMÉKAL, Z. ŠILHAVÝ, P. RAJMIC, P.

Original Title

Time Domain Equalisation for ADSL Technology and its Optimization

English Title

Time Domain Equalisation for ADSL Technology and its Optimization

Type

conference paper

Language

en

Original Abstract

In the paper the methods for compensating the unfavourable properties of the transmission path in ADSL are compared. On the basis of measuring the transmission properties of the telephone channel during ADSL initialization the optimum coefficients of the FIR (Finite Impulse Response) digital filter are calculated. This filter realizes the TEQ (Time Domain Equalization) method and processes effectively the impulse response of transmission channel to the length of permitted cyclic prefix. All the analysed methods give roughly the same results and they mainly differ in how the limiting assumptions are defined. The present authors experience of the TEQ method is described and recommendations are given that should lead to achieving optimum transmission rate for a given interference in the ADSL transmission.

English abstract

In the paper the methods for compensating the unfavourable properties of the transmission path in ADSL are compared. On the basis of measuring the transmission properties of the telephone channel during ADSL initialization the optimum coefficients of the FIR (Finite Impulse Response) digital filter are calculated. This filter realizes the TEQ (Time Domain Equalization) method and processes effectively the impulse response of transmission channel to the length of permitted cyclic prefix. All the analysed methods give roughly the same results and they mainly differ in how the limiting assumptions are defined. The present authors experience of the TEQ method is described and recommendations are given that should lead to achieving optimum transmission rate for a given interference in the ADSL transmission.

Keywords

ADSL, TEQ

RIV year

2003

Released

23.02.2003

Publisher

IEEE Catalog Number: 03EX628C

Location

Papeete, French Polynesia

ISBN

0-7803-7662-5

Book

Proceedings of the 10th International Conference on Telecommunications

Pages from

1171

Pages to

1176

Pages count

6

BibTex


@inproceedings{BUT8461,
  author="Zdeněk {Smékal} and Pavel {Šilhavý} and Pavel {Rajmic}",
  title="Time Domain Equalisation for ADSL Technology and its Optimization",
  annote="In the paper the methods for compensating the unfavourable properties of the transmission path in ADSL are compared. On the basis of measuring the transmission properties of the telephone channel during ADSL initialization the optimum coefficients of the FIR (Finite Impulse Response) digital filter are calculated. This filter realizes the TEQ (Time Domain Equalization) method and processes effectively the impulse response of transmission channel to the length of permitted cyclic prefix. All the analysed methods give roughly the same results and they mainly differ in how the limiting assumptions are defined. The present authors experience of the TEQ method is described and recommendations are given that should lead to achieving optimum transmission rate for a given interference in the ADSL transmission.",
  address="IEEE Catalog Number: 03EX628C",
  booktitle="Proceedings of the 10th International Conference on Telecommunications",
  chapter="8461",
  institution="IEEE Catalog Number: 03EX628C",
  year="2003",
  month="february",
  pages="1171",
  publisher="IEEE Catalog Number: 03EX628C",
  type="conference paper"
}