Efficient initialisation of lattice multicarrier modulation

Daniel J. Ryan*, Iain B. Collings, I. Vaughan L Clarkson

*Corresponding author for this work

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


Recently, a novel transmission technique was proposed for delay-spread channels that guarantees a low peak-to-average power ratio while also having low computational complexity. In this paper, we extend the technique to systems where the symbol length or number of parallel channels is large, such as in Very high speed Digital Subscriber Line (VDSL) or Multiple-Input Multiple-Output (MIMO) systems respectively. While operational complexity is low, the computational cost of initialisation in a VDSL or MIMO channel appears, at first sight, to be prohibitive. We show that initialisation can be carried out efficiently. Having so enabled the technique, we present simulation results in a MIMO-VDSL environment which demonstrate its superiority in comparison to other popular techniques such as V-DMT and DMMT when clipping in the transmit power amplifier is a dominant consideration.

Original languageEnglish
Title of host publicationProceedings 6th Australian Communications Theory Workshop 2005
EditorsLeif W. Hanlen, Paul D. Teal
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Electronic)0780390083, 9780780390089
ISBN (Print)0780390075, 9780780390072
Publication statusPublished - 2005
Externally publishedYes
Event6th Australian Communications Theory Workshop - 2005 - Brisbane, Australia
Duration: 2 Feb 20054 Feb 2005


Other6th Australian Communications Theory Workshop - 2005


  • Digital subscriber line (DSL)
  • Lattice codes
  • MIMO
  • Multicarrier modulation (MCM)
  • Peak-to-average ratio (PAR)

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