PAPR reduction technique for FBMC based visible light communication systems

One of the critical challenges in multicarrier‐based systems is peak to average power ratio (PAPR). Recently, Filter Bank Multicarrier (FBMC) is proved to be a promising candidate that can replace the traditional orthogonal multiplexing division (OFDM) scheme due to its better spectral efficiency, r...

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Bibliographic Details
Published in:IET communications Vol. 16; no. 15; pp. 1807 - 1814
Main Authors: Salama, Gerges M., Abdalla, Haitham F., Mohamed, Amira A., Hassan, Emad S., Dessouky, Moawad I., Khalaf, Ashraf A. M., El‐Emary, Atef, Elsafrawey, Amir S.
Format: Journal Article
Language:English
Published: Stevenage John Wiley & Sons, Inc 01.09.2022
Wiley
Subjects:
Bandwidths
Bias
Bit error rate
Communications systems
Efficiency
Electromagnetic compatibility and interference
Error analysis
Error reduction
Filter banks
Filtering methods in signal processing
Fourier transforms
Integral transforms
Light emitting diodes
Modulation and coding methods
Orthogonal Frequency Division Multiplexing
Other topics in statistics
Radio frequency
Radio links and equipment
Receivers & amplifiers
Signal processing
Spectrum allocation
Wireless communications
ISSN:1751-8628, 1751-8636
Online Access:Get full text
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Summary:One of the critical challenges in multicarrier‐based systems is peak to average power ratio (PAPR). Recently, Filter Bank Multicarrier (FBMC) is proved to be a promising candidate that can replace the traditional orthogonal multiplexing division (OFDM) scheme due to its better spectral efficiency, reducing both inter‐channel interference (ICI) and PAPR. Due to their advantages in reducing the PAPR without impacting the BER, the Hadamard transform was used in the proposed FBMC based VLC system. Furthermore, here, the discreet cosine transform (DCT) precoding is also used to boost the potential for PAPR reduction and the BER efficiency. The negative signals are not clipped off as in traditional asymmetrically‐clipped optical OFDM (ACO‐OFDM) signals to reduce the impact of large‐amplitude signal reduction nor add dc biasing for cancelling negative signals as in traditional DC‐biased optical OFDM (DCO‐OFDM) signals. Furthermore, a Clipping ratio is introduced to allow a trade‐off between bit error rate (BER) and PAPR reduction, and the optimal PAPR reduction is investigated. The obtained results show that the proposed FBMC based VLC system with DCT and clipping technique can reduce the PAPR and achieve good BER efficiency compared to the OFDM based VLC system.
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ISSN:1751-8628
1751-8636
DOI:10.1049/cmu2.12430