Influence of Amplitude Limitation for Random Sequence of Single-Frequency Optimal FTN Signals on the Occupied Frequency Bandwidth and BER Performance

  • Sergey B. Makarov
  • Anna S. Ovsyannikova
  • Sergey V. Zavjalov
  • Sergey V. VolvenkoEmail author
  • Lei Zhang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11118)


Application of optimal signals allows to solve the problem of improving spectral efficiency with minimal energy losses. However, the major disadvantage of such signals is high peak-to-average power ratio (PAPR) which leads to degradation of transmitter efficiency. This work considers the possibility of using rigid amplitude limitation for random sequence of optimal signals. PAPR values distribution is presented. It is shown that amplitude limiting does not cause widening of energy spectrum defined for the level higher than –20 dB. Decreasing PAPR value by 4 dB may provide energy gain up to 3.5 dB as a result of increasing average signal power.


Optimal signals Peak-to-average power ratio  Transmitter efficiency Rigid limitation BER performance 


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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Peter the Great St. Petersburg Polytechnic UniversitySt. PetersburgRussia
  2. 2.School of Computer Science and Software EngineeringEast China Normal UniversityShanghaiChina

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