Lattice reduction aided precoding for multiuser MIMO using Seysen's algorithm

Hong Sun An, Manar Mohaisen, Kyung Hi Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Lenstra-Lenstra-Lovasz (LLL) algorithm, which is one of the lattice reduction (LR) techniques, has been extensively used to obtain better basis of the channel matrix. In this paper, we jointly apply Seysen's lattice reduction algorithm (SA), instead of LLL, with the conventional linear precoding algorithms. Since SA obtains more orthogonal lattice basis compared to that obtained by LLL, lattice reduction aided (LRA) precoding based on SA algorithm outperforms the LRA precoding with LLL. Simulation results demonstrate that a gain of 0.5dB at target BER of 10-5 is achieved when SA is used instead of LLL for the LR stage.

Original languageEnglish
Title of host publication2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2479-2483
Number of pages5
ISBN (Print)9781424451234
DOIs
StatePublished - 2009
Event2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 - Tokyo, Japan
Duration: 13 Sep 200916 Sep 2009

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
Country/TerritoryJapan
CityTokyo
Period13/09/0916/09/09

Keywords

  • LLL algorithm
  • Lattice reduction
  • Multiuser-MIMO
  • Precoding
  • Seysen's algorithm

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