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Adaptive FIR Filtering for PAPR Reduction in OFDM Systems

Hikaru MORITA, Teruyuki MIYAJIMA, Yoshiki SUGITANI

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Summary :

This study proposes a Peak-to-Average Power Ratio (PAPR) reduction method using an adaptive Finite Impulse Response (FIR) filter in Orthogonal Frequency Division Multiplexing systems. At the transmitter, an iterative algorithm that minimizes the p-norm of a transmitted signal vector is used to update the weight coefficients of the FIR filter to reduce PAPR. At the receiver, the FIR filter used at the transmitter is estimated using pilot symbols, and its effect can be compensated for by using an equalizer for proper demodulation. Simulation results show that the proposed method is superior to conventional methods in terms of the PAPR reduction and computational complexity. It also shows that the proposed method has a trade-off between PAPR reduction and bit error rate performance.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E102-A No.8 pp.938-945
Publication Date
2019/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E102.A.938
Type of Manuscript
PAPER
Category
Digital Signal Processing

Authors

Hikaru MORITA
  Ibaraki University
Teruyuki MIYAJIMA
  Ibaraki University
Yoshiki SUGITANI
  Ibaraki University

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