Novel Low-Complexity Partial Transmit Sequences Scheme for PAPR Reduction in OFDM Systems Using Adaptive Differential Evolution Algorithm

Weng, Chien-Erh; Chang, Chuan-Wang; Chen, Chuang-Hsien; Hung, Ho-Lung

doi:10.1007/s11277-012-0836-7

Cited by 27 publications

(14 citation statements)

References 27 publications

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“…1999), partial transmit sequences (Weng et al. 2013) and selected mapping (Kim et al. 2010) are examples of techniques for generating symbols with low PAPR.…”

Section: Related Workmentioning

confidence: 99%

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Equation-Method for correcting clipping errors in OFDM signals

et al. 2016

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Orthogonal frequency division multiplexing (OFDM) is the digital modulation technique used by 4G and many other wireless communication systems. OFDM signals have significant amplitude fluctuations resulting in high peak to average power ratios which can make an OFDM transmitter susceptible to non-linear distortion produced by its high power amplifiers (HPA). A simple and popular solution to this problem is to clip the peaks before an OFDM signal is applied to the HPA but this causes in-band distortion and introduces bit-errors at the receiver. In this paper we discuss a novel technique, which we call the Equation-Method, for correcting these errors. The Equation-Method uses the Fast Fourier Transform to create a set of simultaneous equations which, when solved, return the amplitudes of the peaks before they were clipped. We show analytically and through simulations that this method can, correct all clipping errors over a wide range of clipping thresholds. We show that numerical instability can be avoided and new techniques are needed to enable the receiver to differentiate between correctly and incorrectly received frequency-domain constellation symbols.

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“…1999), partial transmit sequences (Weng et al. 2013) and selected mapping (Kim et al. 2010) are examples of techniques for generating symbols with low PAPR.…”

Section: Related Workmentioning

confidence: 99%

“…2007), partial transmit sequences (Weng et al. 2013), tone reservation (Park and Park 2012) active constellation extension and soft-clipping and filtering (Bae et al. 2010; Ochiai and Imai 2002).…”

Section: Introductionmentioning

confidence: 99%

Equation-Method for correcting clipping errors in OFDM signals

et al. 2016

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“…In the literature, there are certain techniques that are used at the transmitter to either minimize the PAPR or generate signals having low PAPR. The most prominent techniques are active constellation extension, partial transmit sequences, selected mapping, soft clipping and filtering, coding, equation method, and companding . Soft‐clipping at the transmitter is assumed as a modest approach to reduce PAPR.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the distortion factor for Bussgang noise cancellation iterative receivers

Bibi

Muhammad

Cheetham

2019

Int J Communication

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Orthogonal frequency-division multiplexing (OFDM) is considered an efficient modulation approach in the field of wireless systems. However, the significant high peak to average power ratios (PAPR) are one of the prominant shortcomings of the OFDM systems leading to severe signal distortions and acute power inefficiency. Iterative receivers, which use Bussgang algorithm approach along with clipping at the transmitter, have been presented in the literature. This methodology is majorly receiver based in order to compensate the effects of the clipping noise that was added at the transmitter. These receivers are used to analyse the distortions of clipping noise directly subtracting from the signals that are received in order to get the original signal. We demonstrate in this study a detailed and technical investigation of the Bussgang noise cancellation (BNC) receiver along with some significant results. Simulation results are presented to show that the BNC iterative receiver does not estimate the accurate clipping noise, and the performance may be improved if at the receiver end, it is somehow capable to analyze the precise clipping noise for each OFDM signal. KEYWORDSadditive white Gaussian noise, attenuation factor, BNC algorithm, iterative receiver, OFDM, PAPR Int J Commun Syst. 2019;32:e3960.wileyonlinelibrary.com/journal/dac

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“…The EAs have been extensively studied and applied to several problems in wireless communications [34] and to the PAPR reduction problem. These EAs among others include Genetic Algorithms (GAs) [12,[29][30][31][32], Particle Swarm Optimization (PSO) [9,25], Differential Evolution (DE) [24,33], Artificial Bee Colony (ABC) optimization [22], and parallel Tabu Search [18]. In [6] a quantum-inspired evolutionary algorithm (QEA) is proposed using PTS for PAPR reduction.…”

Section: Introductionmentioning

confidence: 99%

A novel generalized oppositional biogeography-based optimization algorithm: application to peak to average power ratio reduction in OFDM systems

Goudos

2016

Open Mathematics

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A major drawback of orthogonal frequency division multiplexing (OFDM) signals is the high value of peak to average power ratio (PAPR). Partial transmit sequences (PTS) is a popular PAPR reduction method with good PAPR reduction performance, but its search complexity is high. In this paper, in order to reduce PTS search complexity we propose a new technique based on biogeography-based optimization (BBO). More specifically, we present a new Generalized Oppositional Biogeography Based Optimization (GOBBO) algorithm which is enhanced with Oppositional Based Learning (OBL) techniques. We apply both the original BBO and the new Generalized Oppositional BBO (GOBBO) to the PTS problem. The GOBBO-PTS method is compared with other PTS schemes for PAPR reduction found in the literature. The simulation results show that GOBBO and BBO are in general highly efficient in producing significant PAPR reduction and reducing the PTS search complexity.

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Novel Low-Complexity Partial Transmit Sequences Scheme for PAPR Reduction in OFDM Systems Using Adaptive Differential Evolution Algorithm

Cited by 27 publications

References 27 publications

Equation-Method for correcting clipping errors in OFDM signals

Equation-Method for correcting clipping errors in OFDM signals

Investigation of the distortion factor for Bussgang noise cancellation iterative receivers

A novel generalized oppositional biogeography-based optimization algorithm: application to peak to average power ratio reduction in OFDM systems

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