The University of Southampton
University of Southampton Institutional Repository

Compressed impairment sensing-assisted and interleaved-double-FFT-aided modulation improves broadband power line communications subjected to asynchronous impulsive noise

Compressed impairment sensing-assisted and interleaved-double-FFT-aided modulation improves broadband power line communications subjected to asynchronous impulsive noise
Compressed impairment sensing-assisted and interleaved-double-FFT-aided modulation improves broadband power line communications subjected to asynchronous impulsive noise
In power line communications (PLCs), the multipath-induced dispersion and the impulsive noise are the two fundamental impediments in the way of high-integrity communications. The conventional orthogonal frequency-division multiplexing (OFDM) system is capable of mitigating the multipath effects in PLCs, but it fails to suppress the impulsive noise effects. Therefore, in order to mitigate both the multipath effects and the impulsive effects in PLCs, in this paper, a compressed impairment sensing (CIS)-assisted and interleaved-double-FFT (IDFFT) aided system is proposed for indoor broadband PLC. Similarly to classic OFDM, data symbols are transmitted in the time-domain, while the equalization process is employed in the frequency-domain in order to achieve the maximum attainable multipath diversity gain. Additionally, a specifically designed interleaver is employed in the frequency-domain in order to mitigate the impulsive noise effects, which relies on the principles of compressive sensing (CS). Specifically, by taking advantage of the interleaving process, the impairment impulsive samples can be estimated by exploiting the principle of CS and then cancelled. In order to improve the estimation performance of CS, we propose a beneficial pilot design complemented by a pilot insertion scheme. Finally, a CIS-assisted detector is proposed for the IDFFT system advocated. Our simulation results show that the proposed CIS-assisted IDFFT system is capable of achieving a significantly improved performance compared to conventional OFDM. Furthermore, the tradeoffs to be struck in the design of the CIS-assisted IDFFT system are also studied.
OFDM, power line communications, compressed sensing
1-15
Zhang, Hongming
ebd930db-9cd8-43ff-8b73-92c1d7f0108b
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Zhang, Hongming
ebd930db-9cd8-43ff-8b73-92c1d7f0108b
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Zhang, Hongming, Yang, Lieliang and Hanzo, Lajos (2015) Compressed impairment sensing-assisted and interleaved-double-FFT-aided modulation improves broadband power line communications subjected to asynchronous impulsive noise. IEEE Access, PP (99), 1-15. (doi:10.1109/ACCESS.2015.2505676).

Record type: Article

Abstract

In power line communications (PLCs), the multipath-induced dispersion and the impulsive noise are the two fundamental impediments in the way of high-integrity communications. The conventional orthogonal frequency-division multiplexing (OFDM) system is capable of mitigating the multipath effects in PLCs, but it fails to suppress the impulsive noise effects. Therefore, in order to mitigate both the multipath effects and the impulsive effects in PLCs, in this paper, a compressed impairment sensing (CIS)-assisted and interleaved-double-FFT (IDFFT) aided system is proposed for indoor broadband PLC. Similarly to classic OFDM, data symbols are transmitted in the time-domain, while the equalization process is employed in the frequency-domain in order to achieve the maximum attainable multipath diversity gain. Additionally, a specifically designed interleaver is employed in the frequency-domain in order to mitigate the impulsive noise effects, which relies on the principles of compressive sensing (CS). Specifically, by taking advantage of the interleaving process, the impairment impulsive samples can be estimated by exploiting the principle of CS and then cancelled. In order to improve the estimation performance of CS, we propose a beneficial pilot design complemented by a pilot insertion scheme. Finally, a CIS-assisted detector is proposed for the IDFFT system advocated. Our simulation results show that the proposed CIS-assisted IDFFT system is capable of achieving a significantly improved performance compared to conventional OFDM. Furthermore, the tradeoffs to be struck in the design of the CIS-assisted IDFFT system are also studied.

Text
access-hanzo-2505676-proof.pdf - Accepted Manuscript
Download (7MB)
Text
07347320.pdf - Version of Record
Restricted to Repository staff only
Request a copy

More information

Accepted/In Press date: 27 December 2015
e-pub ahead of print date: 2015
Keywords: OFDM, power line communications, compressed sensing

Identifiers

Local EPrints ID: 385164
URI: http://eprints.soton.ac.uk/id/eprint/385164
PURE UUID: c01c2f86-4d30-4d47-b82b-39404ec8cf1d
ORCID for Lieliang Yang: ORCID iD orcid.org/0000-0002-2032-9327
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 18 Jan 2016 10:16
Last modified: 17 Dec 2019 02:03

Export record

Altmetrics

Contributors

Author: Hongming Zhang
Author: Lieliang Yang ORCID iD
Author: Lajos Hanzo ORCID iD

University divisions

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

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×