350 rub
Journal Radioengineering №5 for 2018 г.
Article in number:
Comparative analysis of the effect of narrow-band interference on cognitive radio communication systems based on synthesized four-position radio signals
Type of article: scientific article
UDC: 621.396
Keywords: synthesis of radio signal cognitive radio communication system multi-criteria optimization increase of noise immunity.
Authors:

S.N. Kirillov – Dr.Sc.(Eng.), Professor, Head of Department of Radio Control and Communications, Ryazan State Radio Engineering University

E-mail: kirillov.lab@gmail.com

A.A. Lisnichuk – Ph.D.(Eng.), Senior Research Scientist, Department of Radio Control and Communications, Ryazan State Radio Engineering University

E-mail: a.a.lisnichuk@gmail.com

Abstract:

The analysis of the effect of narrow-band interference on cognitive radio communication systems was carried out. In these systems, multi-criteria synthesis of radio signals is realized, taking into account the following quality indicators: noise immunity to the action of narrow-band interference and additive «white» Gaussian noise (AWGN); peak-factor (energy efficiency of signals) and the level of out-of-band radiation. To study the realized quality indicators, aggregate of synthesized signals were analyzed. A comparative analysis was carried out with existing systems which using QPSK-signals and narrow-band rejection on the receiving side. It is shown that cognitive radio communication systems based on synthesized four-position signals provide a gain on the noise immunity up to 7 dB in comparison with QPSK signals with harmonic interference rejection.

Pages: 30-35
References
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Date of receipt: 2 апреля 2018 г.