ISSN 1991-2927
 

ACP № 1 (59) 2020

Author: "Nikolai Iurievich Chilikhin"

Sergei Mikhailovich Namestnikov, Ulyanovsk State Technical University, Candidate of Engineering; graduated from Ulyanovsk State Technical University; Associate Professor at the Department of Telecommunication at Ulyanovsk State Technical University; an author of articles in the field of statistical signal processing and noiseless coding. [e-mail: sernam@ulstu.ru]S. Namestnikov,

Nikolai Iurievich Chilikhin, Ulyanovsk State Technical University, Candidate of Engineering; graduated from Ulyanovsk State Technical University; Associate Professor at the Department of Telecommunication at Ulyanovsk State Technical University; an author of articles in the field of noiseless coding and information security. [e-mail: n.chilikhin@gmail.com]N. Chilikhin

Multidimensional Code Structures With Application of the Bhattacharya Distance 000_4.pdf

The article discusses the application of the Bhattacharya distance in the multidimensional code structures in order to manage excessive component. The proposed approach is a compromise between the high bandwidth requirements and level of error probability on a bit. Multidimensional coded structures effectively solve the problem of error correction (natural and anthropogenic) that arises in the communication channel. However, the increase in code distance by creating multidimensionality leads to a significant reduction in code rate as a result of reducing information bandwidth. In this case, the Bhattacharya distance is a flexible and efficient tool for the task. Usability of the Bhattacharya distance in the scheme of polar codes makes the mechanism convenient for the designer of communication systems, and high corrective abilities of polar codes allow using them as inner codes to build cascade coding and 3D codes. The Bhattacharya dstance is actively used to determine similarities between two or more sets. In the coding theory, this tool is widely used in question of flowing code combinations in the Euclidean space and creation of the generating matrix control mechanism for the purpose of forming the continuous set of code combinations. Such combinations form a set of information symbols that vary in except the lack of transmission and non-excess transmission.

Adaptive system, information management complex, cascaded coding, arikan matrix, soft decision of symbols, soft decoding, feedback, noiseless codes, polar codes, bhattacharya distance.

2017_ 2

Sections: Mathematical modeling

Subjects: Mathematical modeling.


Anatolii Afanasievich Gladkikh, Ulyanovsk State Technical University, Candidate of Engineering; graduated from the S.M. Budyonny Military Academy of Signal Corps; finished his post-graduate studies at the same academy; Professor at the Department of Telecommunication at Ulyanovsk State Technical University; an author of a monograph, textbooks, articles, and patents in the field of noiseless coding and information security. [e-mail: a.gladkikh@ulstu.ru]A. Gladkikh,

Nikolai Iurievich Chilikhin, Ulyanovsk State Technical University, graduated from Ulyanovsk State Technical University; finished his post-graduate studies at the same University; Lecturer at the Department of Telecommunication at Ulyanovsk State Technical University; an author of articles in the field of noiseless coding and information security. [e-mail: n.chilikhin@gmail.com]N. Chilikhin,

Sergei Mikhailovich Namestnikov, Ulyanovsk State Technical University, Candidate of Engineering; graduated from Ulyanovsk State Technical University, finished his post-graduate studies at the same university; Associate Professor at the Department of Telecommunication at Ulyanovsk State Technical University; an author of articles in the field of statistical signal processing. [e-mail: sernam@ulstu.ru]S. Namestnikov,

Dmitrii Vladimirovich Ganin, Nizhny Novgorod State Agricultural Academy, Candidate of Economics, Associate Professor; graduated from Nizhny Novgorod State Agricultural Academy; Head of the Department of Infocommunication Technologies and Telecommunications at the Nizhny Novgorod State University of Engineering and Economics; an author of articles in the field of infocommunications. [e-mail: ngiei135@mail.ru]D. Ganin

Unification of Redundant Code Decoding Algorithms in Integrated Information-management Systems 39_2.pdf

The increasing requirements for control of integrated information-management system elements are caused by the need of application of communication protocols that are heterogeneous in terms of organization and control cycle duration. Thereupon, it is reasonable to use a set of error-controlled codes differing in redundancy, and processed on a common hardware platform, in similar systems to prevent errors in real-time information. To implement this concept it is expedient to use short block codes. They are applicable in the process of small data transmitting and they can be easily transformed to protect a large bulk of data using the cascaded coding technology or on the basis of product codes in 3D or in higher dimensions. The code sequences shortening at specified requirements in terms of data adequacy leads to a need of the flexible synthesis of information on signals received from a continuous communications channel and of soft iterative algorithms of the selected redundant codes processing. Polar code constructions meet this requirement. The paper offers to use the proper code combinations space clustering in order to reduce the polar code combinations processing time interval. The text gives valuable information on a clustering mechanism and cluster number security variants when transmitting over a noisy channel. The authors present the results of polar code decoding simulation models testing using different algorithms that demonstrate the benefits of the proposed data processing method under conditions of low signal-to-noise ratios compared to canonical schemes required for redundant code decoding.

Polar code, soft-decision decoder, iterative process, cluster, cascade code, erasure, list decoding.

2015_ 1

Sections: Automated control systems

Subjects: Automated control systems, Electrical engineering and electronics, Architecture of ship's system.


Anatoly Afanasyevich Gladkikh, Ulyanovsk State Technical University, Candidate of Engineering; graduated from the S.M. Budyonny Military Communication Academy; finished his post-graduate studies at the same Academy; an doctoral student at Ulyanovsk State Technical University; Professor at the Department of the Telecommunication at Ulyanovsk State Technical University; an author of a monograph, text-books, research papers, and patents in the field of noise-immune coding and information security. [e-mail: a.gladkikh@ulstu.ru]A. Gladkikh,

Nikolai Iurevich Chilikhin, Ulyanovsk State Technical University, Post-graduate student at the Department of Telecommunication of Ulyanovsk State Technical University, graduated from Ulyanovsk State Technical University; an author of publications in the field of redundant code soft-decision decoding. [e-mail: leavrorle@gmail.com]N. Chilikhin

The Formation of Relaxed Solutions in the System of the Broadband Channel With Qpsk–qam 33_11.pdf

A relevant problem of a soft-decision indexes (SDI) forming for non-binary codes consisted in the signal sets under its processing at the non-stationary channel output is settled. On the one hand, the increasing of positions in such sets leads to the system data rate rise, but on the other hand, it reduces the Euclidean distance between the points of signal constellation. Such contradiction is resolved by choosing a reasonable modulation rate in combination with the means of transmitter error-correction coding and soft code pattern decoding by the receiver with SDI.

Ofdm, erasure channel, soft decoder, iterative process, ofdm.

2013_ 3

Sections: Mathematical modeling, calculi of approximations and software systems

Subjects: Mathematical modeling, Electrical engineering and electronics.


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