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Joint channel estimation and peak-to-average power reduction in coherent OFDM: a novel approach

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Author

  • Maria Julia Fernández-Getino Garcia
  • Ove Edfors
  • José M. Páez-Borrallo

Summary, in English

A new peak-to-average power reduction approach for OFDM has been addressed. Two-dimensional pilot-symbol assisted modulation (2D-PSAM) is employed in coherent OFDM for channel estimation and it is based on inserting known symbols spreaded out throughout the 2D time-frequency grid. We show that these scattered symbols can also be employed to perform distortionless peak power reduction, with a negligible loss in data-rate. To reduce additional system complexity and side information, several suboptimal strategies are proposed. A comparison between the two schemes with different approaches to the joint design of pilot symbols for both channel estimation and peak power reduction, has also been carried out

Publishing year

2001

Language

English

Pages

815-819

Publication/Series

Proc. IEEE Vehicular Technology Conference

Volume

2

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE Vehicular Technology Conference (VTC) Spring

Conference date

2001-05-06 - 2001-05-09

Conference place

Rhodes, Greece

Status

Published

Research group

  • Radio Systems

ISBN/ISSN/Other

  • ISBN: 0-7803-6728-6