PAPR reduction technique for FBMC based visible light communication systems

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.

doi:10.1049/cmu2.12430

Cited by 11 publications

(4 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Ref. 29, a combination of a discrete cosine transform (DCT), and a spreading and clipping method was introduced to enhance the PAPR reduction amount. In Ref.…”

Section: Introductionmentioning

confidence: 99%

A complexity efficient PAPR reduction scheme for FBMC-based VLC systems

2024

Opto-Electronics Review

View full text Add to dashboard Cite

Visible light communication based on a filter bank multicarrier holds enormous promise for optical wireless communication systems, due to its high-speed and unlicensed spectrum. Moreover, visible light communication techniques greatly impact communication links for small satellites like cube satellites, and pico/nano satellites, in addition to inter-satellite communications between different satellite types in different orbits. However, the transmitted visible signal via the filter bank multicarrier has a high amount of peak-toaverage power ratio, which results in severe distortion for a light emitting diode output. In this work, a scheme for enhancing the peak-to-average power ratio reduction amount is proposed. First, an algorithm based on generating two candidates signals with different peakto-average power ratio is suggested. The signal with the lowest ratio is selected and transmitted. Second, an alternate direct current-biased approach, which is referred to as the addition reversed method, is put forth to transform transmitted signal bipolar values into actual unipolar ones. The performance is assessed through a cumulative distribution function of peak-to-average power ratio, bit error rate, power spectral density, and computational complexity. The simulation results show that, compared to other schemes in literature, the proposed scheme attains a great peak-to-average power ratio reduction and improves the bit the error rate performance with minimum complexity overhead. The proposed approach achieved about 5 dB reduction amount compared to companding technique, 5.5 dB compared to discrete cosine transform precoding, and 8 dB compared to conventional direct current bias of an optical filter bank multicarrier. Thus, the proposed scheme reduces the complexity overhead by 15.7% and 55.55% over discrete cosine transform and companding techniques, respectively.

show abstract

“…In Ref. 29, a combination of a discrete cosine transform (DCT), and a spreading and clipping method was introduced to enhance the PAPR reduction amount. In Ref.…”

Section: Introductionmentioning

confidence: 99%

A complexity efficient PAPR reduction scheme for FBMC-based VLC systems

2024

Opto-Electronics Review

View full text Add to dashboard Cite

show abstract

“…The combination of these two algorithms considerably improves the overall performance of the FBMC/OQAM system and ensures the trade-off between the PAPR, BER and computational complexity. In a visible light communication (VLC) based FBMC system, researchers suggest in [12] the clipping method with discrete cosine transform (DCT) precoding and Hadamard transform separately, then evaluate it with that of VLC-based OFDM. The VLC-based FBMC system performs better in terms of PAPR reduction and BER than the VLC-based OFDM system.…”

Section: Introductionmentioning

confidence: 99%

Repeated Clipping Filtering with Nonlinear Companding for PAPR Reduction in MIMO FBMC/OQAM System

2023

IJIES

View full text Add to dashboard Cite

Multi-carrier modulation (MCM) is one of the fundamental components of beyond 5G (B5G) and 6G that meets the many requirements of contemporary use cases. Filter bank multi-carrier with offset quadrature amplitude modulation (FBCM/OQAM) is one of the most promising modulation that offers many benefits to the next generation. However, like all MCM modulations, it shows a high peak signal in the time domain, which causes in-band (IB) and out-of-band (OOB) distortions in the amplifier output signal. The present paper suggests that an FBMC/OQAM system with multi-input multi-output (MIMO) employs a new hybridization that combines repeated clipping filtering (RCF) with several companding techniques, including A-Law, Mu-Law, tangente rooting (tanhR), logarithmic rooting (logR), cos and rooting companding (RTC). The combination of RCF and Mu-Law yields the best results of peak-to-average power ratio (PAPR) reduction and bit error rate (BER). The simulation results showed a significant decrease in PAPR, with a reduction of 68.54% compared to the original signal without the reduction technique.

show abstract

“…In this approach, the modulated data is multiplied by a pre-coding matrix at the transmitter before the IFFT block in the OFDM structure, and the inverse pre-coding matrix is applied at the receiver after the FFT block to recover the modulated data. Various transforms have been employed as pre-coding matrices to reduce PAPR, including discrete cosine transform (DCT), zadoff-chu transform (ZCT), discrete Fourier transform (DFT) [14], walsh-hadamard transform (WHT) [15], discrete hartley transform (DHT) [16], and vandermonde-like matrix (VLM) transform [17]. Pre-coding has a number of advantages over other approaches, including signal independence, no requirement for signalling overhead, and no significant degradation in BER performance [18].…”

Section: Introductionmentioning

confidence: 99%

“…This combined method achieves a modest PAPR improvement of approximately 1 dB without compromising BER performance when compared to the DCT pre-coded method. In [15], the DCT pre-coding scheme is integrated with the clipping method to decrease PAPR for DCO-OFDM, yielding an enhancement of approximately 2 dB. The study outlined in [21] simultaneously applies multiple DCT pre-coding techniques to an IM/DD system by grouping subcarriers.…”

Section: Introductionmentioning

confidence: 99%

A DCT/DST Based Fast OFDM Method in IM/DD Systems

Cinemre

Hacıoğlu

2021

IEEE Commun. Lett.

View full text Add to dashboard Cite

Orthogonal frequency division multiplexing (OFDM) is critical for high-speed visible light communication (VLC) transmission; however, it suffers from a high peak-to-average power ratio (PAPR) problem. Among PAPR reduction techniques, pre-coding methods have shown promising advantages such as signal independence and no requirement for signaling overhead. In this paper, we present a novel pre-coding method that combines discrete cosine transform (DCT) and discrete sine transform (DST) for VLC systems using OFDM. Our proposed approach, tailored specifically for intensity modulation and direct detection (IM/DD) systems, aims to further improve the PAPR reduction while preserving bit error rate (BER) performance. Simulation results demonstrate that the proposed method achieves more than a 6 dB reduction in PAPR compared to the DCT pre-coded method without significant degradation in BER performance.

show abstract

PAPR reduction technique for FBMC based visible light communication systems

Cited by 11 publications

References 36 publications

A complexity efficient PAPR reduction scheme for FBMC-based VLC systems

A complexity efficient PAPR reduction scheme for FBMC-based VLC systems

Repeated Clipping Filtering with Nonlinear Companding for PAPR Reduction in MIMO FBMC/OQAM System

A DCT/DST Based Fast OFDM Method in IM/DD Systems

Contact Info

Product

Resources

About