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Peak power reduction for OFDM systems with orthogonal pilot sequences

In English

Författare

Summary, in English

In this paper, a novel peak-to-average power reduction approach for orthogonal frequency division multiplexing (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 spread throughout the 2D time-frequency grid. These pilot symbols are employed to simultaneously perform distortionless peak power reduction with a suboptimum technique named orthogonal pilot sequences (OPS), which reduces additional system complexity and side information compared to optimum pilot values. This proposal attains a further step over other previous works, since this set of sequences allows blind detection at the receiver without prior knowledge of any side information.

Publiceringsår

2006

Språk

Engelska

Sidor

47-51

Publikation/Tidskrift/Serie

IEEE Transactions on Wireless Communications

Volym

5

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • peak-to-average power
  • OFDM
  • pilot symbols

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1536-1276