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The impact of signal clipping and nonlinear power amplifier on SEFDM system

Keywords:

A.V. Rashich – Ph. D. (Eng.), Department «Radioelectronic Means of Information Protection», Peter The Great St.Petersburg Polytechnic University. E-mail: andrey.rashich@gmail.com D.K. Fadeev – Assistant, Department «Radioelectronic Means of Information Protection», Peter The Great St.Petersburg Polytechnic University. E-mail: fadeev_dk@spbstu.ru


The impact of distortions caused by nonlinear power amplifier (PA) is evaluated for BPSK and QPSK Spectrally Efficient Frequency Di-vision Multiplexing (SEFDM) signals. System performance depends on input power back-off (IBO) and SEFDM parameters, such as modulation scheme, frequency spacing between subcarriers and total number of subcarriers. Performance is quantified with total de-gradation (TD), defined as the sum (in decibels) of the IBO and the increment in the ratio Eb/No required to maintain a given bit error rate (BER) with respect to the situation of perfectly linear PA. IBO corresponding to minimum TD is obtained. Additional clipping degrades overall BER performance.
References:

 

  1. Xu T., Darwazeh I. Spectrally Efficient FDM: Spectrum Saving Technique for 5G? // 1st International Conference on 5G for Ubiquitous Connectivity (5GU). 2014 .
  2. Hamamura M., Tachikawa S. Bandwidth efficiency improvement for multi-carrier systems // 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). 2004. V. 1.
  3. Antognetti P. Power Integrated Circuits: Physics, Design, and Applications. NewYork. McGraw-Hill. 1986. 544 p.
  4. Makarov S.B., Markov A.M. Vlijanie amplitudnogo ogranichenija kvadraturnykh sostavljajushhikh signalov s OFDM v moduljatore radioperedatchika na pomekhoustojjchivost priema // Nauchno-tekhnicheskie vedomosti SPbGPU. 2012. № 2(145).
  5. Thompson S.C., Proakis J.G., Zeidler J.R. The Effectiveness of Signal Clipping for PAPR and Total Degradation Reduction in OFDM Systems // IEEE Global Telecommunications Conference (GLOBECOM). 2005.
  6. Guel D., Palicot J. Analysis and comparison of clipping techniques for OFDM Peak-to-Average Power Ratio reduction // 16th International Conference on Digital Signal Processing. 2009
  7. Ahmed S.I. Spectrally Efficient FDM Communication Signals and Transceivers: Design, Mathematical Modelling and System Optimization // A thesis submitted for the degree of Doctor of Philosophy. 2011.
  8. Rapp C. Effects of the HPA-nonlinearity on a 4-DPSK/OFDM signal for a digital sound broadcasting system // 2nd European Conference on Satellite Com m unications (E CSC). Li´ege. Belgium. October 1991.
  9. D’Andrea A.N., et al. RFPowerAmplifierLinearizationThroughAmplitudeandPhaseDistortion // IEEETrans. Commun. November 1996. V. 44. № 11.
  10. Kislitsyn A.B., Rashich A.V., Tan N.N. Generation of SEFDM-Signals Using FFT/IFFT // 14th International Conference NEW2AN 2014 and 7th Conference ruSMART 2014.
  11. Zavjalov S.V., Makarov S.B., Volvenko S.V. Nonlinear Coherent Detection Algorithms of Nonorthogonal Multifrequency Signals // 14th International Conference NEW2AN 2014 and 7th Conference ruSMART.

 

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