Evaluation of PAPR reduction based on block interleaving method in presence of nonlinear PA model with memory

Orthogonal Frequency Division Multiplexing (OFDM) has been shown to be an effective technique in wireless communications. It has been successfully used for Radio Frequency applications. However, reducing its main drawback known as PAPR (Peak-to-Average Power Ratio) is one of the main challenges to u...

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Bibliographic Details
Published in2018 25th International Conference on Telecommunications (ICT) pp. 451 - 455
Main Authors Aimer, Y., Bouazza, B.S., Bachir, S., Duvanaud, C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2018
Subjects
downward compatibility
interleaver code
interleaving technique
OFDM systems
PAPR reduction
Peak to average power ratio
Radio frequency
Receivers
Signal to noise ratio
Wireless LAN
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Summary:Orthogonal Frequency Division Multiplexing (OFDM) has been shown to be an effective technique in wireless communications. It has been successfully used for Radio Frequency applications. However, reducing its main drawback known as PAPR (Peak-to-Average Power Ratio) is one of the main challenges to use efficiently the High Frequency Power Amplifier at the transmitter. As one of attractive technique, interleaving method can be used in PAPR reduction for multicarrier signals without spectrum distortion, but with additional Side-Information. In this paper, we propose to extend the possibilities of interleaving to improve PAPR reduction and make possible the downward compatibility by transmitting interleaver code via null-subcarriers. Simulation in the context of WLAN 802.11a standard in presence of a nonlinear Power Amplifier (PA) model with memory has been performed. Results show a PAPR reduction of about 5,2 dB and an improvement of about 1 decade in BER (Bit Error Rate) and 4% in EVM (Error Vector Magnitude), while respecting the spectral mask.
DOI:10.1109/ICT.2018.8464827