Low complexity hybrid SLM for PAPR mitigation for ACO OFDM

Niwareeba, Roland; Cox, Mitchell A.; Cheng, Ling

doi:10.1016/j.icte.2021.10.002

Cited by 13 publications

(5 citation statements)

References 10 publications

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“…In order to generate V lexicographical candidate permutation sequences, V 2N-point IFFT operations are required [16]. Therefore, the complexity is provided by…”

Section: The Most Suitable Number Of Candidate Permutation Sequencesmentioning

confidence: 99%

“…A number of solutions have been proposed that could be deployed to deal with this problem. One such category consists of multiple signaling and probabilistic methodologies, such as the utilization of selected mapping (SLM) [14][15][16] and symbol position permutation (SPP) [17], which have become popular because they result in significant PAPR reduction without BER degradation. Both SLM and SPP accomplish PAPR reduction by generating and evaluating a range of diverse candidate signals from which the one exhibiting the least PAPR is then selected for transmission.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive-Mode PAPR Reduction Algorithm for Optical OFDM Systems Leveraging Lexicographical Permutations

2023

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In direct current optical orthogonal frequency division multiplexing (DCO-OFDM) systems, the high peak-to-average power ratio (PAPR) has been a significant challenge. Recently, lexicographical symbol position permutation (LSPP) using random permutations has been introduced as an efficient solution to reduce high PAPR. In this paper, we aim to evaluate the effectiveness of LSPP by comparing both adjacent and interleaved lexicographical permutation sequences with random lexicographical permutation sequences. Our findings demonstrate that random permutation yields superior PAPR reduction performance results when compared to adjacent and interleaved permutation. However, in scenarios with a limited number of sub-blocks, the use of adjacent and interleaved permutation becomes more favorable, as they can eliminate the possibility of generating identical permutation sequences, a drawback of random permutation. Additionally, we propose a novel algorithm to determine the optimal number of candidate permutation sequences that can achieve acceptable PAPR reduction performance while adhering to computational complexity constraints defined by the system requirements.

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“…In order to generate V lexicographical candidate permutation sequences, V 2N-point IFFT operations are required [16]. Therefore, the complexity is provided by…”

Section: The Most Suitable Number Of Candidate Permutation Sequencesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adaptive-Mode PAPR Reduction Algorithm for Optical OFDM Systems Leveraging Lexicographical Permutations

2023

Self Cite

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“…A low-complexity novel hybrid approach for PAPR mitigation in ACO OFDM systems is described in Ref. [ 21 ]. Computer simulations show that the suggested approach greatly lowers the PAPR when compared to the traditional SLM or commanding alone.…”

Section: Literature Reviewmentioning

confidence: 99%

PAPR reduction using SLM-PTS-CT hybrid PAPR method for optical NOMA waveform

Kumar,

Rajagopal,

Alruwais

et al. 2023

Heliyon

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“…Computer models demonstrate to the conventional SLM or compounding alone, the proposed approach dramatically lowers the PAPR. Additionally, compared to conventional SLM and without BER degradation, LCHSLM significantly reduces complexity [9]. H Merah et al offer a unique partial transmit sequence-based technique (N-PTS).…”

Section: Related Workmentioning

confidence: 99%

A Novel PAPR Reduction in Filter Bank Multi-Carrier (FBMC) with Offset Quadrature Amplitude Modulation (OQAM) Based VLC Systems

Vaigandla

Benita

2023

IJRITCC

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The peak to average power ratio (PAPR) is one of the major problem with multicarrier-based systems. Due to its improved spectral efficiency and decreased PAPR, Filter Bank Multicarrier (FBMC) has recently become an effective alternative to the orthogonal multiplexing division (OFDM). For filter bank multicarrier communication/offset quadrature amplitude modulation-Visible light communication (FBMC/OQAM-VLC) systems is proposed a PAPR reduction technique. The suggested approach overlaps the proposed FBMC/OQAM-based VLC data signal with the existing signals. Non-redundant signals and data signals do not overlap in the frequency domain because data signals are scattered on odd subcarriers whereas built signals use even subcarriers. To reduce the effects of large-amplitude signal reduction, the suggested technique converts negative signals into positive signals rather than clipping them off as in conventional FBMC-based VLC systems. The PAPR reduction and bit error rate (BER) are realized using a scaling factor in the transformed signals. Complementary cumulative distribution function(CCDF) and BER are used to calculate the performance of the proposed approach. The presented study found that FBMC/OQAM-VLC systems to achieve a good trade-off between PAPR reduction and BER.

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Low complexity hybrid SLM for PAPR mitigation for ACO OFDM

Cited by 13 publications

References 10 publications

Adaptive-Mode PAPR Reduction Algorithm for Optical OFDM Systems Leveraging Lexicographical Permutations

Adaptive-Mode PAPR Reduction Algorithm for Optical OFDM Systems Leveraging Lexicographical Permutations

PAPR reduction using SLM-PTS-CT hybrid PAPR method for optical NOMA waveform

A Novel PAPR Reduction in Filter Bank Multi-Carrier (FBMC) with Offset Quadrature Amplitude Modulation (OQAM) Based VLC Systems

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