Moving the PAR Reduction Criterion into the Line Driver

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding


Traditionally, Peak to Average Ratio (PAR) reduction in digital subscriber line (DSL) transmitters focuses on a digitaldomain signal, either at the output of the baseband processing block or at the input of the digital-to-analogue converter (DAC). However, analysis of a DSL transceiver shows that the power dissipation is highly dependent on the PAR at a certain node inside the line driver. Thus, in order to be fully effective, the algorithm design should include the power amplifier
dynamics. A typical, actively terminated, line driver is
analysed and a model is constructed for PAR reduction purposes. The PAR reduction algorithm is then extended to take advantage of the model. Simulations show that algorithms which are designed to reduce PAR at the new, physically motivated, node obtain about 0.5 dB lower PAR evaluated at this node compared to methods that focus on the PAR of the DAC input.


  • K Werner
  • N Larsson
  • Niklas Andgart
  • Thomas Magesacher
  • Tore André
  • Torbjörn Randhal
  • Per Ödling
Enheter & grupper

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Elektroteknik och elektronik
Titel på värdpublikation12th European Signal Processing Conference, EUSIPCO 2004
FörlagInstitute of Electrical and Electronics Engineers Inc.
ISBN (tryckt)978-320000165-7
StatusPublished - 2004
Peer review utfördJa
Evenemang12th European Signal Processing Conference EUSIPCO, 2004 - Vienna, Vienna, Österrike
Varaktighet: 2004 sep 62004 sep 10


Konferens12th European Signal Processing Conference EUSIPCO, 2004