RETRACTED ARTICLE: Peak to average power ratio reduction of ZT DFT-s-OFDM signals using improved monarch butterfly optimization-PTS scheme

Lavanya, Pathuri; Satyanarayana, Penke; Mohatram, Mohammad

doi:10.1007/s12652-020-01940-0

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…If there are huge amount of non‐overlapping sub‐blocks in one symbol, then it requires, huge amount of memory. Various hybrid techniques combining PTS techniques have been proposed in recent research works in a bid to increase the performance of PAPR reduction 41‐47 . However, in our research, improved monarch butterfly optimization (IMBO) algorithm has been incorporated with the PTS technique (IMBO‐PTS) 48 for generating optimum phase factors was a success with good PAPR reduction rate.…”

Section: Structural Model Of Zt Dft‐s‐ofdmmentioning

confidence: 89%

“…Various hybrid techniques combining PTS techniques have been proposed in recent research works in a bid to increase the performance of PAPR reduction. [41][42][43][44][45][46][47] However, in our research, improved monarch butterfly optimization (IMBO) algorithm has been incorporated with the PTS technique (IMBO-PTS) 48 for generating optimum phase factors was a success with good PAPR reduction rate. Selected suitable factor amalgamation b ¼ b 1 , …, b v ½ through IMBO makes the result achieve optimum.…”

Section: Imbo-partial Transmit Sequence Technologymentioning

confidence: 99%

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Retracted: Peak to average power ratio reduction of ZT DFT‐S‐OFDM signals using hybrid improved monarch butterfly optimization‐PTS scheme with TR‐clipping scheme

Lavanya

Satyanarayana

Mohatram

2021

Int J Communication

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Current research on zero-tail discrete Fourier transform spread OFDM, an add on to conventional discrete Fourier transform DFT-OFDM modulation without cyclic prefix (CP). Its low power tail is configured for coping up with channel's delay spread. Advantageous feature of ZT DFT-S-OFDM has drawn researchers for deploying it as a potential waveform candidate to fifth generation (5G). However, the intrinsic shortcoming of high peak to average power ratio (PAPR) should be alleviated. In order to improve that work, we propose a hybrid PAPR scheme that implements optimized partial transmit sequence (PTS) with tone reservation (TR) with clipping technique. Its earlier work stresses for reducing PTS scheme's computational complexity with enhanced version of monarch butterfly optimization (MBO) for PAPR reduction in ZT DFT-S-OFDM system. The proposed model reduced the correlation among the candidate signals. In this paper, we further reduce PAPR by deploying TR clipping pair, which reduces the influence of clipping noise and decreases ZT DFT-S-OFDM signal's PAPR at same time. The proposed hybrid technique produces excellent PAPR reduction while improving receiver sensitivity and effective throughout. The performance comparison is done using the parameters like PAPR and BER to confirm that this introduced design exceeds current waveforms designs with more economical design structure.clipping, monarch butterfly optimization, partial transmit sequence, peak to average power ration, tone reservation, zero-tail discrete Fourier transform spread OFDM | INTRODUCTIONCommunication systems widely use multicarrier waveforms candidates because of their high data rate transmission and their ease of propagation in multipath fading environments. They are recognized for implementation in future coming wireless systems also. Current mobile wireless standards such as IEEE 802.11, wireless local area networks (WLANs), 4G-(LTE) deployed orthogonal frequency division multiplexing waveform as a vehicle for communication. OFDM has definitely stood itself as a dominant waveform for its use in digital video and audio broadcasting (DAB-DVB). 1 Nevertheless, this waveform has few prolonged implementation issues, the predominating one being the

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Section: Structural Model Of Zt Dft‐s‐ofdmmentioning

confidence: 89%

Section: Imbo-partial Transmit Sequence Technologymentioning

confidence: 99%

Retracted: Peak to average power ratio reduction of ZT DFT‐S‐OFDM signals using hybrid improved monarch butterfly optimization‐PTS scheme with TR‐clipping scheme

Lavanya

Satyanarayana

Mohatram

2021

Int J Communication

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“…Most popular evolutionary methods of Grey Wolf Optimization, Ray Optimization, Gravitational Search Algorithm (GSA), Charged System Search (CSS), Biogeographic optimization algorithm (BBO), Differential Evolutionary Algorithm (DE), and Genetic Algorithm (GA) etc., were applied in OFDM [7]. PTS method phase factor sequence selection is a non-linear optimization problem and the presence of a large number of sub-blocks non-overlapping greatly affects the memory usage and greater complexity [8]. Some of the researches involve in applying jointly optimization of BER and PAPR performance to overcome the drawbacks of signal companding transform method [9,10].…”

Section: Introductionmentioning

confidence: 99%

Nested Particle Swarm Optimization and Grey Wolf Optimization for Phase Optimization in Orthogonal Frequency Division Multiplexing

2022

IJIES

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In wireless communication systems, Multiple-Input Multiple-Out (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) were widely used technology. Spectrum utilization efficiency is needed to improve in OFDM technology for effective performance. A Nested Particle Swarm Optimization and Grey Wolf Optimization (HPSO-GWO) is proposed with the Low-Density Parity-Check (LDPC) coding scheme for minimizing the errors that occurred while transmitting the data bits over the MIMO-OFDM. The Nested PSO-GWO process involves in update the velocity of PSO using GWO method that helps to increases the convergence rate and balance the trade-off between exploration-exploitation process. The optimal velocity update in the PSO helps to escape from local optima trap in the search process and improve the efficiency of the model. Generally, the linear error-correcting codes are applied in Low-Density Parity-Check (LDPC) that is used to transmit the message in a noisy channel. Fast Fourier Transform (FFT), CP removal, and the Serial to Parallel (S/P) are accomplished as well as the received data bits are demodulated to obtain the output bits on the receiver side. The proposed method has 10-2 CCDF in 5.6 PAPR and the existing method requires more than 6 PAPR to achieve 10-2 CCDF.

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Enhanced F-OFDM candidate for 5G applications

Taher

Radhi

Jameil

2020

J Ambient Intell Human Comput

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RETRACTED ARTICLE: Peak to average power ratio reduction of ZT DFT-s-OFDM signals using improved monarch butterfly optimization-PTS scheme

Cited by 4 publications

References 23 publications

Retracted: Peak to average power ratio reduction of ZT DFT‐S‐OFDM signals using hybrid improved monarch butterfly optimization‐PTS scheme with TR‐clipping scheme

Retracted: Peak to average power ratio reduction of ZT DFT‐S‐OFDM signals using hybrid improved monarch butterfly optimization‐PTS scheme with TR‐clipping scheme

Nested Particle Swarm Optimization and Grey Wolf Optimization for Phase Optimization in Orthogonal Frequency Division Multiplexing

Enhanced F-OFDM candidate for 5G applications

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