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On the Necessary Accuracy of Representation of Optimal Signals

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

Abstract

The way to increase spectral efficiency without significant energy losses by using optimal signals is considered. SDR (software-defined radio) platform is proposed as transceiver prototype. Improvement of its performance may be achieved due to decreasing the number of digits after decimal point and the number of expansion coefficients, which define representation of signals. We used various forms of optimal signals obtained for different restrictions on out-of-band emissions, symbol rate and BER (bit error rate) performance. The influence of the number of digits after decimal point on spectral and energy efficiency of optimal signals is considered. The necessary accuracy of representation providing maximal spectral efficiency is found for different cases.

Keywords

Optimal signals Accuracy Energy efficiency Spectral efficiency Out-of-band emissions Optimization problem SDR-platform 

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Peter the Great St. Petersburg Polytechnic UniversitySt. PetersburgRussia

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