liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Lattice Structures of Precoders Maximizing the Minimum Distance in Linear Channels
Ericsson Research, Sweden.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
Hong Kong University of Science and Technology, Peoples R China.
Lund University, Sweden.
2015 (English)In: IEEE Transactions on Information Theory, ISSN 0018-9448, E-ISSN 1557-9654, Vol. 61, no 2, 908-916 p.Article in journal (Refereed) Published
Abstract [en]

This paper investigates linear precoding over nonsingular linear channels with additive white Gaussian noise, with lattice-type inputs. The aim is to maximize the minimum distance of the received lattice points, where the precoder is subject to an energy constraint. It is shown that the optimal precoder only produces a finite number of different lattices, namely perfect lattices, at the receiver. The well-known densest lattice packings are instances of perfect lattices, but are not always the solution. This is a counter-intuitive result as previous work in the area showed a tight connection between densest lattices and minimum distance. Since there are only finite many different perfect lattices, they can theoretically be enumerated offline. A new upper bound on the optimal minimum distance is derived, which significantly improves upon a previously reported bound, and is useful when actually constructing the precoders.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2015. Vol. 61, no 2, 908-916 p.
Keyword [en]
MIMO; modulation; lattices
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-114573DOI: 10.1109/TIT.2014.2367004ISI: 000348298400017OAI: oai:DiVA.org:liu-114573DiVA: diva2:791468
Note

Funding Agencies|Swedish Foundation for Strategic Research; Centers for High Speed Wireless Communications and Distributed Antenna Systems through the Lund University, Lund, Sweden; Research Grants Council Areas of Excellence Scheme [E-02/08]; University Grants Committee, Hong Kong

Available from: 2015-02-27 Created: 2015-02-26 Last updated: 2017-12-04

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Cheng, Hei Victor

Search in DiVA

By author/editor
Cheng, Hei Victor
By organisation
Communication SystemsThe Institute of Technology
In the same journal
IEEE Transactions on Information Theory
Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 719 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf