Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming

Francisco Müller; Chenguang Lu; Per-Erik Eriksson; Stefan Höst; Aldebaro Klautau

doi:10.1109/ICC.2014.6883973

Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming

Francisco Müller, Chenguang Lu, Per-Erik Eriksson, Stefan Höst, Aldebaro Klautau

Institutionen för elektro- och informationsteknik

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

Sammanfattning

The use of vectoring for crosstalk cancellation in
the new ITU-T G.fast standard for next generation DSL systems
becomes essential for efficient utilization of the extended
bandwidth (up to 200 MHz). In VDSL2 (up to 30 MHz),
a zero-forcing-based linear precoder is used in downstream
which approaches single-line performance. However, at high
frequencies, the linear precoder may amplify the signal power
substantially since the crosstalk channel is much stronger
than at lower frequencies. Performance could be significantly
degraded by power normalization to keep the PSD below the
mask. In this work, we extended a per-line power normalization
scheme by linear programming (LP) optimization. By
simulations using measured cable data it is shown how the LPbased
scheme further improves the linear precoder and it is
also capable of balancing the data rate between lines. Further,
the simulations also show the non-linear Tomlinson-Harashima
precoder performs better than the linear precoders.

Originalspråk	engelska
Titel på värdpublikation	2014 IEEE International Conference on Communications, ICC 2014
Förlag	IEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor	4060-4065
ISBN (tryckt)	9781479920037
DOI	https://doi.org/10.1109/ICC.2014.6883973
Status	Published - 2014
Evenemang	IEEE ICC 2014 - Selected Areas in Communications Symposium - Sydney, Australien Varaktighet: 2014 juni 10 → 2014 juni 14

Konferens

Konferens	IEEE ICC 2014 - Selected Areas in Communications Symposium
Land/Territorium	Australien
Ort	Sydney
Period	2014/06/10 → 2014/06/14

Ämnesklassifikation (UKÄ)

Elektroteknik och elektronik

Tillgång till dokument

10.1109/ICC.2014.6883973

Citera det här

@inproceedings{8063d8ef262a49c58880102012187442,

title = "Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming",

abstract = "The use of vectoring for crosstalk cancellation in the new ITU-T G.fast standard for next generation DSL systems becomes essential for efficient utilization of the extended bandwidth (up to 200 MHz). In VDSL2 (up to 30 MHz), a zero-forcing-based linear precoder is used in downstream which approaches single-line performance. However, at high frequencies, the linear precoder may amplify the signal power substantially since the crosstalk channel is much stronger than at lower frequencies. Performance could be significantly degraded by power normalization to keep the PSD below the mask. In this work, we extended a per-line power normalization scheme by linear programming (LP) optimization. By simulations using measured cable data it is shown how the LPbased scheme further improves the linear precoder and it is also capable of balancing the data rate between lines. Further, the simulations also show the non-linear Tomlinson-Harashima precoder performs better than the linear precoders.",

author = "Francisco M{\"u}ller and Chenguang Lu and Per-Erik Eriksson and Stefan H{\"o}st and Aldebaro Klautau",

year = "2014",

doi = "10.1109/ICC.2014.6883973",

language = "English",

isbn = "9781479920037",

pages = "4060--4065",

booktitle = "2014 IEEE International Conference on Communications, ICC 2014",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "IEEE ICC 2014 - Selected Areas in Communications Symposium ; Conference date: 10-06-2014 Through 14-06-2014",

}

Müller, F, Lu, C, Eriksson, P-E, Höst, S & Klautau, A 2014, Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming. i 2014 IEEE International Conference on Communications, ICC 2014. IEEE - Institute of Electrical and Electronics Engineers Inc., s. 4060-4065, IEEE ICC 2014 - Selected Areas in Communications Symposium, Sydney, Australien, 2014/06/10. https://doi.org/10.1109/ICC.2014.6883973

Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming. / Müller, Francisco; Lu, Chenguang; Eriksson, Per-Erik et al.
2014 IEEE International Conference on Communications, ICC 2014. IEEE - Institute of Electrical and Electronics Engineers Inc., 2014. s. 4060-4065.

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

TY - GEN

T1 - Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming

AU - Müller, Francisco

AU - Lu, Chenguang

AU - Eriksson, Per-Erik

AU - Höst, Stefan

AU - Klautau, Aldebaro

PY - 2014

Y1 - 2014

N2 - The use of vectoring for crosstalk cancellation in the new ITU-T G.fast standard for next generation DSL systems becomes essential for efficient utilization of the extended bandwidth (up to 200 MHz). In VDSL2 (up to 30 MHz), a zero-forcing-based linear precoder is used in downstream which approaches single-line performance. However, at high frequencies, the linear precoder may amplify the signal power substantially since the crosstalk channel is much stronger than at lower frequencies. Performance could be significantly degraded by power normalization to keep the PSD below the mask. In this work, we extended a per-line power normalization scheme by linear programming (LP) optimization. By simulations using measured cable data it is shown how the LPbased scheme further improves the linear precoder and it is also capable of balancing the data rate between lines. Further, the simulations also show the non-linear Tomlinson-Harashima precoder performs better than the linear precoders.

AB - The use of vectoring for crosstalk cancellation in the new ITU-T G.fast standard for next generation DSL systems becomes essential for efficient utilization of the extended bandwidth (up to 200 MHz). In VDSL2 (up to 30 MHz), a zero-forcing-based linear precoder is used in downstream which approaches single-line performance. However, at high frequencies, the linear precoder may amplify the signal power substantially since the crosstalk channel is much stronger than at lower frequencies. Performance could be significantly degraded by power normalization to keep the PSD below the mask. In this work, we extended a per-line power normalization scheme by linear programming (LP) optimization. By simulations using measured cable data it is shown how the LPbased scheme further improves the linear precoder and it is also capable of balancing the data rate between lines. Further, the simulations also show the non-linear Tomlinson-Harashima precoder performs better than the linear precoders.

U2 - 10.1109/ICC.2014.6883973

DO - 10.1109/ICC.2014.6883973

M3 - Paper in conference proceeding

SN - 9781479920037

SP - 4060

EP - 4065

BT - 2014 IEEE International Conference on Communications, ICC 2014

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - IEEE ICC 2014 - Selected Areas in Communications Symposium

Y2 - 10 June 2014 through 14 June 2014

ER -

Optimizing Power Normalization for G.fast Linear Precoder by Linear Programming

Sammanfattning

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