Wireless Personal Communications

, Volume 108, Issue 4, pp 2449–2460 | Cite as

A Novel Detected Peak Samples Combining Technique for PAPR Minimization of MC-CDMA Signal

  • Anil Kumar KhatriEmail author
  • Lokesh Tharani


A new signal scrambling technique is proposed to minimize the peak to average power ratio (PAPR) of multi carrier code division multiple access (MC-CDMA) signal using novel detected peak samples combining technique. This new approach minimizes PAPR by combing the MC-CDMA symbol with a number of copies of the detected peak sample which belong to the same MC-CDMA symbol. The analytical and simulation results show that by the right selection of the number of peak samples; the PAPR for 64 subcarrier system reduces by 4.9 dB at the complementary cumulative distribution function = 10−3. The PAPR can be further reduced by increasing the number of peak samples but it could compromise the data speed. The implementation of this technique is very simple when compared to the existing techniques like selective mapping, partial transmit sequence and tone reservation as it requires lesser number of Inverse Fast Fourier Transform/Fast Fourier Transform blocks, no side information and low processing delay.


Detected peak samples combining (DPSC) Peak to average power ratio (PAPR) Orthogonal frequency division multiplexing (OFDM) Multi carrier code division multiple access (MC-CDMA) Complementary cumulative distribution function (CCDF) Selective mapping (SLM) Partial transmit sequence (PTS) 



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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electronics and Communication, University College of EngineeringRajasthan Technical UniversityKotaIndia

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