Share Email Print

Proceedings Paper

Impact of non-stationary noise on xDSL systems: an experimental analysis
Author(s): Lamartine V. de Souza; Diego L. Cardoso; Marcelino S. Silva; Marcos C. Seruffo; Dário Russillo; João C. W. A. Costa; Carlos R. L. Francês; Agostinho L. S. Castro; Gervásio P. dos S. Cavalcante; Jaume R. I. Riu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Broadband services require data rates that can only be achieved by using relatively high spectrum frequencies. At such high frequencies, the DSL (Digital Subscriber Line) signal is more susceptible to external noise sources, such as radio frequency interference and impulsive noise. This paper aims to characterize how the impulsive noise impacts on services and applications for a broadband system using an ADSL2+ loop. The first approach was to use the impulsive noise defined in the standards G.996.1 (Test Procedures for DSL Transceivers) from ITU-T and TR-048 (ADSL Interoperability Test Plan) from DSL Forum. In this approach we have also used a HDSL (High Bit Rate DSL) and white noise disturbers on the line. The impulsive noises c1 and c2 (defined in G.996.1) are injected into the circuit at the CO (Central Office) end and CPE (Customer Premises Equipment) end of the loop simulator. Additionally, it was analyzed the spikes of noise's impact on the ADSL2+ line. In this case, pre-defined models of NEXT (Near-end crosstalk) and white noise are injected on CO and CPE side, simultaneously. Metrics like packet rate, lost packet count, bandwidth, short-term average transfer delay, and errored seconds are used to characterize the DSL loop under the noise impairments.

Paper Details

Date Published: 13 June 2007
PDF: 9 pages
Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 66030G (13 June 2007); doi: 10.1117/12.724705
Show Author Affiliations
Lamartine V. de Souza, Federal Univ. of Pará (Brazil)
Diego L. Cardoso, Federal Univ. of Pará (Brazil)
Marcelino S. Silva, Federal Univ. of Pará (Brazil)
Marcos C. Seruffo, Federal Univ. of Pará (Brazil)
Dário Russillo, Federal Univ. of Pará (Brazil)
João C. W. A. Costa, Federal Univ. of Pará (Brazil)
Carlos R. L. Francês, Federal Univ. of Pará (Brazil)
Agostinho L. S. Castro, Federal Univ. of Pará (Brazil)
Gervásio P. dos S. Cavalcante, Federal Univ. of Pará (Brazil)
Jaume R. I. Riu, Ericsson AB (Sweden)

Published in SPIE Proceedings Vol. 6603:
Noise and Fluctuations in Photonics, Quantum Optics, and Communications
Leon Cohen, Editor(s)

© SPIE. Terms of Use
Back to Top