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Advances in VLSI, Communication, and Signal Processing pp 623–629Cite as

Minimization of Peak-to-Average Power Ratio in DHT Precoded OFDM System by A-Law Companding

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Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 683))

Abstract

In this paper, peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) is minimized by a new technique called as DHT precoder and A-law companding with variable parameters. This technique is implemented in two stages for PAPR reduction of OFDM system. In first stage, DHT precoder is used to spread the symbols and PAPR of this OFDM system is transformed into signal carrier modulation system which has a smaller amount of PAPR compared to multicarrier modulation system. In second stage, A-law companding is used to compressing large peaks and then, PAPR reduces. Therefore, proposed technique minimizes PAPR up to 4 dB (A = 10) and 2.98 dB (A = 30) which is better than DHT precoder, DFT precoder and A-law companding effectively and also preserves bit error rate (BER) performance.

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Author information

Authors and Affiliations

  1. Electronics and Communication Engineering Department, Motilal Nehru National Institute of Technology Allahabad, Allahabad, India

    Ajay Kumar Yadav, Dheeraj Dubey & Y. K. Prajapati

Authors
  1. Ajay Kumar Yadav
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  2. Dheeraj Dubey
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  3. Y. K. Prajapati
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Corresponding author

Correspondence to Ajay Kumar Yadav .

Editor information

Editors and Affiliations

  1. Faculty of Engineering and Technology, General Engineering Research Institute, Liverpool John Moorse University, Liverpool, UK

    David Harvey

  2. Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India

    Haranath Kar

  3. Department of Information Technology, Indian Institute of Information Technology, Allahabad, India

    Shekhar Verma

  4. Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India

    Vijaya Bhadauria

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Cite this paper

Yadav, A.K., Dubey, D., Prajapati, Y.K. (2021). Minimization of Peak-to-Average Power Ratio in DHT Precoded OFDM System by A-Law Companding. In: Harvey, D., Kar, H., Verma, S., Bhadauria, V. (eds) Advances in VLSI, Communication, and Signal Processing. Lecture Notes in Electrical Engineering, vol 683. Springer, Singapore. https://doi.org/10.1007/978-981-15-6840-4_51

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  • DOI: https://doi.org/10.1007/978-981-15-6840-4_51

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-6839-8

  • Online ISBN: 978-981-15-6840-4

  • eBook Packages: EngineeringEngineering (R0)

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