PAPR reduction techniques for the next generation of mobile broadcasting

Several high-speed wireless systems use Orthogonal Frequency Division Multiplexing (OFDM) due to its advantages. 5G has adopted OFDM and is expected to be considered beyond 5G (B5G). Meanwhile, OFDM has a high Peak-to-Average Power Ratio (PAPR) problem. Hybridization between two PAPR reduction techniques gains the two techniques’ advantages. Hybrid precoding-companding techniques are attractive as they require small computational complexity to achieve high PAPR reduction gain. Many precoding-companding techniques were introduced to increasing the PAPR reduction gain. However, reducing Bit Error Rate (BER) and out-of-band (OOB) radiation are more significant than increasing PAPR reduction gain. This paper proposes a new precoding-companding technique to better reduce the BER and OOB radiation than previous precoding-companding techniques. Results showed that the proposed technique outperforms all previous precoding-companding techniques in BER enhancement and OOB radiation reduction. The proposed technique reduces the Error Vector Magnitude (EVM) by 15 dB compared with 10 dB for the best previous technique. Additionally, the proposed technique increases high power amplifier efficiency (HPA) by 11.4%, while the best previous technique increased HPA efficiency by 9.8%. Moreover, our proposal achieves PAPR reduction gain better than the most known powerful PAPR reduction technique with a 99% reduction in required computational complexity.

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Comparison of PAPR Reduction Techniques for OFDM Transmission Over Underwater Acoustic Channel

Springer Proceedings in Physics - International Youth Conference on Electronics, Telecommunications and Information Technologies ◽

10.1007/978-3-030-58868-7_73 ◽

2020 ◽

pp. 665-674

Author(s):

Evgenii Vylegzhanin ◽

Artem Chilingarov ◽

Bang Khuc ◽

Danila Puzko ◽

Yuriy Batov ◽

...

Keyword(s):

Papr Reduction ◽

Underwater Acoustic Channel ◽

Underwater Acoustic ◽

Acoustic Channel ◽

Reduction Techniques

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A Review Paper on PAPR Reduction Techniques using Clipping& Filtering, Selective Mapping and Companding Methods in OFDM Systems

IJARCCE ◽

10.17148/ijarcce.2017.6381 ◽

2017 ◽

Vol 6 (3) ◽

pp. 354-357

Author(s):

Okello Kenneth ◽

Professor Usha Neelakanta

Keyword(s):

Review Paper ◽

Papr Reduction ◽

Ofdm Systems ◽

Reduction Techniques ◽

Selective Mapping

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PAPR REDUCTION TECHNIQUES AND IMAGE QUALITY ASSESSMENTIN IMAGE BASED MMS VLC SYSTEM

INFORMATION TECHNOLOGY IN INDUSTRY ◽

10.17762/itii.v9i2.469 ◽

2021 ◽

Vol 9 (2) ◽

pp. 1178-1185

Author(s):

Kiranmai Babburu , Et. al.

Keyword(s):

Image Quality ◽

Wireless Communication ◽

Digital Image ◽

Average Power ◽

Multipath Fading ◽

Multicarrier Modulation ◽

Papr Reduction ◽

Optical Wireless Communication ◽

Optical Wireless ◽

Reduction Techniques

The radiofrequency method of transmission suffers from the problem of the limited licensed radio frequency spectrum, & security, wide EMI (electromagnetic interference), high multipath fading & power consumption for short-range applications. The solution to these problems can be achieved by using optical wireless communication technique called the Visible Light Communication system where the data is sent through regulated emission of light. The transmission of digital image information productively in the present optical wireless communication framework is an uphill task as these systems often suffer from problems like frequency selective fading propagation losses and inter-symbol interferences. In order to conquer such difficulties we hereby propose a robust method to transfer the digital image through a Multi-Carrier Modulation Scheme-MMS. In this paper, an Image-Based Multicarrier modulation VLC system is designed through which is sent a corrupted Digital Image with additive white Gaussian noise and explored the overall execution of the Image based Multicarrier modulation VLC system at distinct SNR values. The paper also addresses the issue of high Peak to Average Power Ratio (PAPR) in Multicarrier modulation and reduced it by using different PAPR reduction techniques. The received image quality of the proposed system is obtained under different signal to noise ratios at different modulation schemes..

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On the Comparative Performance Analysis of PAPR Reduction Techniques in OFDM System

Rajshahi University Journal of Science and Engineering ◽

10.3329/rujse.v43i0.26179 ◽

2015 ◽

Vol 43 ◽

pp. 39-49

Author(s):

Md. Ibrahim Khalil ◽

Sabbir Ahmed

Keyword(s):

Performance Analysis ◽

Orthogonal Frequency Division Multiplexing ◽

Average Power ◽

Papr Reduction ◽

Hadamard Transform ◽

Ofdm Systems ◽

Comparative Performance ◽

Computational Overhead ◽

Reduction Techniques ◽

Overall Performance

Selected Mapping (SLM) and Partial Transmit Sequence (PTS) are two very well-known Peak-to-average Power Ratio (PAPR) reduction techniques for Orthogonal Frequency Division Multiplexing (OFDM) systems. Both these schemes show good PAPR reduction capabilities. However, for any PAPR reduction technique, the nature of spectral occupancy and the associated computational complexity also need to be taken into account when the overall performance is considered. In this paper, our goal is to perform a comparative performance analysis of SLM and PTS techniques by considering these three parameters, i.e. PAPR reduction, computational overhead and spectral compactness. For this, we at first look for the optimum values in terms of number of sequences in SLM and no. of sub-blocks in PTS. And then based on this finding, we perform performance analysis. Our finding shows that, PTS outperforms SLM when compared on the parameters mentioned above. Finally, to explore the feasibility of further improvement, we apply Walsh-Hadamard Transform to PTS scheme and show that it further reduces PAPR and improves spectral compactness.

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