Discrete multi-tone digital subscriber loop performance in the face of impulsive noise
Discrete multi-tone digital subscriber loop performance in the face of impulsive noise
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.
Bai, Tong
15e00a16-2ade-4fdb-a4d9-a490a526669a
Zhang, Hongming
ebd930db-9cd8-43ff-8b73-92c1d7f0108b
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Al Rawi, Anas F.
88c37049-0173-42d7-8c2c-cc939df0536b
Zhang, Jiankang
6add829f-d955-40ca-8214-27a039defc8a
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Bai, Tong
15e00a16-2ade-4fdb-a4d9-a490a526669a
Zhang, Hongming
ebd930db-9cd8-43ff-8b73-92c1d7f0108b
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Al Rawi, Anas F.
88c37049-0173-42d7-8c2c-cc939df0536b
Zhang, Jiankang
6add829f-d955-40ca-8214-27a039defc8a
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
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.
(doi:10.1109/ACCESS.2017.2712359).
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
More information
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
Catalogue record
Date deposited: 17 Jul 2017 13:34
Last modified: 18 Mar 2024 03:14
Export record
Altmetrics
Contributors
Author:
Tong Bai
Author:
Hongming Zhang
Author:
Rong Zhang
Author:
Lieliang Yang
Author:
Anas F. Al Rawi
Author:
Jiankang Zhang
Author:
Lajos Hanzo
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics