ANALYSIS OF TELECOMMUNICATION CHANNEL SPECTRAL CHARACTERISTICS WITH BLOCK CODING AT A CONSTANT SPEED OF THE MESSAGE SOURCE
DOI:
https://doi.org/10.20535/2411-2976.12021.55-61Keywords:
speed, message source, reliability, noise immunityAbstract
Background. The direction of development of modern electronic communication systems tends to increase the speed of information transmission. In turn, increasing the speed requires the use of additional resources of the communication channel and tools to maintain the specified reliability of the transmission under limited conditions. But resources are not free. That is why there is a need to establish a relationship between the conditions for reliable transmission in high-speed channels and the spectral and energy parameters of the information transmission system.
Objective. The purpose of the paper is to analyse and describe the effect of block noise-tolerant coding on the rate of transmission of symbols in the communication channel while ensuring the required reliability of information transmission at a constant speed of the message source by increasing the frequency involved.
Methods. The initial stage of the study is the presentation of system parameters in case of inaccurate transmission. Then a block redundant code is synthesized, which ensures the reliability of information transmission and the procedure of spreading the spectrum at a fixed speed of the message source is performed.
Results. Recommendations on the method of selecting coding parameters in the procedure of spreading the spectrum and provided that the speed of the message source is constant are formed.
Conclusions. Analysis of the possibilities of noise-tolerant coding at different energies of the communication channel under conditions of increasing the channel transmission rate at a fixed speed of the message source.
Keywords: speed; message source; reliability; noise immunity.
References
Fundamentals of telecommunications theory / Textbook / For general. ed. prof. Ilchenko M.Yu. - Kyiv: 2010. - ISSZI NTUU "KPI" - 786 p., ill.
Shannon C. E. A mathematical Theory of Communication [Text] / C. E. Shannon. – The Bell System Technical Journal, vol. 27., 1948. – pp. 379–423, 623–656.
Urivsky L, Kornienko A, The method of determining the parameter of the encoding speed according to the algorithm for controlling the situation in the communication channel when the performance of the message source is unchanged. - K .: ITS KPI. Igor Sikorsky, XV International STC "Prospects for Telecommunications", / Collection of materials. - 2021, p.p.62… 65.
George C. Clark Jr. J. Bibb Cain Error-Correction Coding for Digital Communications // eBook ISBN 978-1-4899-2174-1 // Springer US, 1981. 422 p.
Uryvsky L., Osypchuk S., Moshynska A., Pieshkin A. The Comparative Assessment of Corrective Parameters for Antinoise Convolutional and Block Codes / 2018 International Conference Radio Electronics & Info Communications (UkrMiCo). – IEEE Xplore Digital Library. – https://ieeexplore.ieee.org/xpl/conhome/9040460/proceeding.
Cover T. M. Elements of Information Theory, 2nd ed. [Text] / T. M. Cover, J. A. Thomas. – Wiley-Interscience, 2006. – 772 р.
Gallager R. G. Information Theory and Reliable Communication [Text] / R. G. Gallager. – Wiley, 1968. – 588 р.
Uryvskiy L. Pieshkin A. The informational efficiency improving methods of the signal-code constructions with the condition of providing required reliability - Budapest, Hungary: The scientific heritage - № 11, 2017 - p.p. 72...77.
Uryvsky L., Pieshkin A. Assessment of Information Efficiency of Error-correcting Codes in Plotkin bound [Electronic resource] // IEEE International Conference on Information and Telecommunication Technologies and Radio Electronics. - 2017
Morelos-Zaragoza R. The Art of noise-tolerant coding. Methods, algorithms, and applications / Per. from the English ed. V.B. Afanasiev. M. : Technosphere, 2005. 320 p
Hamming R. W. Coding and Information Theory, Prentice-Hall, Englewood Cliffs, N.J., 1986.
Uryvsky L., Prokopenko K., Peshkin A. The convolutional codes analysis technique on the optimum block codes grounds// Information and Telecommunication Sciences. – K.: NTUU 'KPI'. – 2014. – № 2, p.p.8-13.
Urivsky L., Peshkin A. Methods for assessing the marginal information efficiency of noise-tolerant codes // Information and Telecommunication Sciences, - K .: NTUU 'KPI'. - 2016. - № 2. – p.p.70-74.
Peterson W. Error-correcting codes [Text] / W. Peterson, E. Weldon. // M .: "MIR", 1976. - 594 p.
