Methods of synthesis and formation of a system of nonlinear discrete signals for modern information and communication systems
Keywords:correlation function, discrete sequences, synthesis of signal systems, noise-like signal, noise immunity of signal reception, cryptographic signal, statistical characteristics of the correlation function, decimation
The paper presents the results of solving the urgent problem of improving the performance indicators of information and communication systems (ICS), in particular, information security, noise immunity, secrecy, the speed of formation and processing of information. The use of the distributed spectrum technology (broadband noise-like signals) is a promising direction for ensuring the security of information resources. The methods used for data formation and processing, as well as the classes of broadband signals used as physical data carriers, do not allow providing the necessary (especially for critical infrastructure facilities) indicators of information security and noise immunity. In this case, as discrete sequences (DS) that expand the spectrum (manipulate the carrier frequency), should be used DS based on nonlinear construction rules and having improved correlation, ensemble and structural properties. Methods for the synthesis and formation of nonlinear discrete complex signals, namely, the so-called cryptographic signals, are proposed. The first method, presented in the article, uses random (pseudo-random) processes. Another method is based on the implementation of the operation of decimation of the original discrete sequence of symbols obtained from the results of the implementation of the first method; it provides the synthesis of an ensemble of signals for a certain signal duration. Analytical expressions are obtained for determining the synthesis time of an ensemble of signals using the proposed methods. It is shown that the speed of the signal generation method based on the decimation operation for a certain signal duration is more than three orders of magnitude higher than the speed of the method based on the random (pseudo-random) processes used. At the same time, based on the carried out computer simulation, it is shown that the signals obtained using the proposed methods have identical correlation, ensemble, and structural properties.
Sarvate, D.V. Crosleration Properties of Pseudorandom and Related Sequences / D.V. Sarvate, M.V. Parsley // IEEE Trans. Commun. 1980. Vol. Com 68. P. 59–90.
Варакин Л. Е. Системы связи с шумоподобными сигналами. 1985. 384 с.
Gorbenko I. D., Zamula А. А., Morozov V. L. Information security and noise immunity of telecommunication systems under conditions of various internal and external impacts // Telecommunications and Radio Engineering Volume 76, 2017 Issue 19, pages 1705-1717 DOI: 10.1615/TelecomRadEng.v76.i19.30.
Methods for implementing communications in info-communication systems based on signal structures with specified properties / I. D. Gorbenko, А. А. Zamula, V. L. Morozov // 2017 4th International Scientific-Practical Conference Problems of Info communications Science and Technology, PIC S and T 2017. Proceedings. DOI: 10.1109/INFOCOMMST.2017.8246359.
Gorbenko I. D., Zamula А. А., Ho Tri Luk Synthesis of derivatives of complex signals based on nonlinear discrete sequences with improved correlation properties // Радіотехніка. 2019. Вип. 199. С. 110 -120.
Gorbenko I. D., Zamula А. А. Cryptographic signals: requirements, methods of synthesis, properties, application in telecommunication systems // Telecommunications and Radio Engineering Volume 76, 2017. Issue 12, pages 1079-1100. DOI: 10.1615/TelecomRadEng.v76.i12.50.
Gorbenko I.D., Zamula A.A., Semenko Ye.A. Ensemble and correlation properties of cryptographic sig-nals for telecommunication system and network applications // Telecommunications and Radio Engineering. Vol. 75, 2016 Issue 2. Pages 169-178. DOI: 10.1615/TelecomRadEng.v75.i2.60.
Gorbenko I. D., Zamula А. А., Morozov V. L. Information and communication systems based on signal systems with improved properties building concept. Workshop Proceedings 2019 CEUR.
Горбенко І.Д., Замула О.А. Моделі та методи синтезу криптографічних сигналів та їх оптимізація за критерієм часової складності // Математичне та комп’ютерне моделювання. Серія: Фіз.-мат. науки : зб. наук. праць / Інститут кібернетики імені В.М. Глушкова Національної академії наук України, 2017. Вип. 15. 272 с.
Горбенко І.Д., Замула О.А., Хо Чі Лик Оптимізація пошуку дискретних складних сигналів з необхідними властивостями для застосування у сучасних інформаційно-комунікаційних системах // Математичне та комп’ютерне моделювання. Серія: Техн. науки : зб. наук. праць / Інститут кібернетики імені В.М. Глушкова Національної академії наук України, 2019. Вип. 19. 160 с.
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