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PAPR Reduction Comparison in FFT-Based OFDM Versus DWT-Based OFDM

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Advances in Signal Processing and Communication

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 526))

Abstract

In this paper, we have compared the performance of DWT OFDM and FFT OFDM. The DWT OFDM can act as a possible substitute for the Fast Fourier Transform (FFT) as there is no requirement of Cyclic Prefix due to the overlapping properties of DWT. This satisfies the orthogonality principle with the ideal reconstruction of the signal. Discrete Wavelet Transform (DWT), which is the basis of DWT OFDM, has many beneficial characteristics over FFT OFDM. Simply by replacing the FFT block with DWT in OFDM system, an improvement in performance has been detected which creates a new DWT-based OFDM system. Our simulation result shows that DWT OFDM system is superior to FFT OFDM in terms of PAPR by up to 2.3 dB with an affordable decrease in overall complexity of the system.

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Authors and Affiliations

  1. Jaypee Institute of Information Technology University, Noida, 201301, India

    Alok Joshi, Apoorv Manas, Samarth Garg & Rahul Wason

Authors
  1. Alok Joshi
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  2. Apoorv Manas
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  3. Samarth Garg
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  4. Rahul Wason
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Corresponding author

Correspondence to Samarth Garg .

Editor information

Editors and Affiliations

  1. University of Nevada, Reno, Reno, NV, USA

    Banmali S. Rawat

  2. Atal Bihari Vajpayee Indian Institute of Information Technology and Management, Gwalior, Gwalior, Madhya Pradesh, India

    Aditya Trivedi

  3. Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India

    Sanjeev Manhas

  4. Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India

    Vikram Karwal

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Joshi, A., Manas, A., Garg, S., Wason, R. (2019). PAPR Reduction Comparison in FFT-Based OFDM Versus DWT-Based OFDM. In: Rawat, B., Trivedi, A., Manhas, S., Karwal, V. (eds) Advances in Signal Processing and Communication . Lecture Notes in Electrical Engineering, vol 526. Springer, Singapore. https://doi.org/10.1007/978-981-13-2553-3_11

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  • DOI: https://doi.org/10.1007/978-981-13-2553-3_11

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-2552-6

  • Online ISBN: 978-981-13-2553-3

  • eBook Packages: EngineeringEngineering (R0)

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