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# Discrete multi-tone digital subscriber loop performance in the face of impulsive noise

Bai, Tong, Zhang, Hongming, Zhang, Rong, Yang, Lieliang, Al Rawi, Anas F., Zhang, Jiankang and Hanzo, Lajos (2017) Discrete multi-tone digital subscriber loop performance in the face of impulsive noise. IEEE Access.

Record type: Article

## Abstract

As an important solution to "the last mile" access, Digital Subscriber Loops (DSL) are still maintained in a huge plant to support low-cost but high-quality broadband network access through telephone lines. The Discrete multi-tone (DMT) transmissions constitute a baseband version of the ubiquitous orthogonal frequency division multiplexing (OFDM). While the DMT is ideally suited to deal with the frequency selective channel in DSL, the presence of bursty impulsive noise tends to severely degrade the transmission performance. In this paper, we analyse the statistics of impulsive noise and its effects on the received signals, with the aid of a hidden semi-Markov process. The closed-form BER expression is derived for the DMT system for $Q$-ary quadrature amplitude modulation (QAM) under practical noise conditions and for measured dispersive DSL channels. Instead of relying on the simplified stationary and impulsive noise process, our noise model considers both the temporal and spectral characteristics, based on the measurement results. The simulation results confirm the accuracy of the formulas derived and quantify the impact both of the impulsive noise and of the dispersive channel in DSL.

Text
PA_IN_DSL - Accepted Manuscript

Accepted/In Press date: 26 May 2017
e-pub ahead of print date: 6 June 2017

## Identifiers

Local EPrints ID: 412380
URI: http://eprints.soton.ac.uk/id/eprint/412380
PURE UUID: 549ab6ea-b5c2-4847-b08c-517985f886a6
ORCID for Lieliang Yang: orcid.org/0000-0002-2032-9327
ORCID for Jiankang Zhang: orcid.org/0000-0001-5316-1711
ORCID for Lajos Hanzo: orcid.org/0000-0002-2636-5214

## Catalogue record

Date deposited: 17 Jul 2017 13:34

## Contributors

Author: Tong Bai
Author: Hongming Zhang
Author: Rong Zhang
Author: Lieliang Yang
Author: Anas F. Al Rawi
Author: Jiankang Zhang
Author: Lajos Hanzo

## University divisions

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