Low-complexity lattice-based low-PAR transmission for DSL channels

Author

Collings, Iain B. ; Clarkson, I. Vaughan L

Author_Institution

Telecomms Lab, Univ. of Sydney, NSW, Australia

Volume

4

fYear

2003

fDate

2003

Firstpage

2120

Abstract

The 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 the performance of the lattice-MCM is superior even compared to recent techniques for PAR-reduction in DMT.

Keywords

computational complexity; digital subscriber lines; modulation; ADSL modem; DMT modulation; DSL channels; PAPR; discrete multitone modulation; implementation complexity; lattice-MCM; lattice-based transmission; multicarrier modulation; peak-to-average power ratio; peak-to-average ratio; Australia; Bit error rate; DSL; Decoding; Information technology; Lattices; OFDM modulation; Peak to average power ratio; Power engineering and energy; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258610

Filename

1258610