Low-Complexity Lattice-Based Low-PAR Transmission for DSL Channels

Iain B. Collings*, I. Vaughan L Clarkson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

2 Citations (Scopus)


This paper presents a new multicarrier modulation (MCM) technique based on lattices which achieves a peak-to-average power ratio (PAR) as low as 3. The scheme can be viewed as a 'drop in' replacement for the discrete multitone (DMT) modulation of an ADSL modem. Performance is up to 8.5 dB better than standard DMT in amplifier-clipped conditions. Moreover, the new technique has a lower implementation complexity, O(N), compared with DMT which requires O(N log N) operations. Simulation studies confirm that performance of the lattice-MCM is superior even compared to recent techniques for PAR-reduction in DMT.

Original languageEnglish
Title of host publicationGlobal Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Print)0780379748
Publication statusPublished - Dec 2003
Externally publishedYes
EventIEEE Global Telecommunications Conference GLOBECOM'03 - San Francisco, CA, United States
Duration: 1 Dec 20035 Dec 2003


OtherIEEE Global Telecommunications Conference GLOBECOM'03
CountryUnited States
CitySan Francisco, CA

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