Designing tone reservation PAR reduction

Authors:
Niklas Andgart;Per ödling;Albin Johansson;Per Ola Börjesson
Affiliations:
Signal Processing Group, Department of Information Technology, Lund University, Lund, Sweden;Signal Processing Group, Department of Information Technology, Lund University, Lund, Sweden;Ericsson AB, Stockholm, Sweden;Signal Processing Group, Department of Information Technology, Lund University, Lund, Sweden
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2006

Citing 2
Cited 1

PSD-constrained PAR reduction for DMT/OFDM

EURASIP Journal on Applied Signal Processing
An active-set approach for OFDM PAR reduction via tone reservation

IEEE Transactions on Signal Processing

Compressed sensing techniques for receiver based post-compensation of transmitter's nonlinear distortions in OFDM systems

Signal Processing

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Abstract

Tone reservation peak-to-average (PAR) ratio reduction is an established area when it comes to bringing down signal peaks in multicarrier (DMT or OFDM) systems. When designing such a system, some questions often arise about PAR reduction. Is it worth the effort? How much can it give? How much does it give depending on the parameter choices? With this paper, we attempt to answer these questions without resolving to extensive simulations for every system and every parameter choice. From a specification of the allowed spectrum, for instance prescribed by a standard, including a PSD-mask and a number of tones, we analytically predict achievable PAR levels, and thus implicitly suggest parameter choices. We use the ADSL2 and ADSL2+ systems as design examples.