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

Författare:
Publiceringsår: 2001
Språk: Engelska
Sidor: 815-819
Publikation/Tidskrift/Serie: Proc. IEEE Vehicular Technology Conference
Volym: 2
Dokumenttyp: Konferensbidrag
Förlag: IEEE

Sammanfattning

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

Disputation

Nyckelord

  • Technology and Engineering

Övriga

IEEE Vehicular Technology Conference
2001-05-06/2001-05-09
Rhodes, Greece
Published
Yes
  • Radio Systems
  • ISBN: 0-7803-6728-6

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