Improvements encoding energy benefit in protected telecommunication data transmission channels

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dc.contributor.authorБойко, Юлій Миколайович
dc.contributor.authorBoiko, Juliy Mikolayovych
dc.contributor.authorЄрьоменко, Олександр Іванович
dc.contributor.authorEromenko, Alexander Ivanovych
dc.date.accessioned2017-08-08T12:35:28Z
dc.date.available2017-08-08T12:35:28Z
dc.date.issued2014
dc.descriptionThe paper make the following statements: turbo-codes are formed as result of composing two or more component codes, which are variants altering one data sequence; and decoding procedure consists in transmitting soft scheme of decision making from output of one decoder to input of another one and repeating this procedure until the reliable decision. It has been defined that enhancing noise resistance in digital telecommunication channels is achieved by using schemes of cascade turbo-encoding. The slope of TC characteristics is defined to lower at growing value of Eb / N0 , what testifies of saturation effect in error probability. From the research it has been found that encoding energy benefit (EEB) for cascade code is formed by the structure: outer Reed-Solomon encoder, inner –turbo-encoder makes about 1.8 dB for level BER 10E-6 as compared with cascade code CC: RS (255, 223), CnC (171, 133), BPSK, R=1/2. The structural scheme of data transmission channel with cascade turbo-encoding has been developed. It is defined that in case of encoding rate ½ EEB=2.3 dB (BER=10E-5) as compared with cascade code having the following structure: SCS RS (255, 247), interleaver, CnC (171, 133), QPSK, R = 1/ 2 . In case of realizing data transmission channel at encoding rate 1/3 - EEB equaled 2.8 dB (BER=10E-5), as compared with cascade code having structure: SCS RS (255, 247), interleaver, CnC (171, 133), QPSK, R = 1/ 2 . Changing code structure, encoding rate in case of turbo-encoding leads to increasing EEB. It has been developed Simulink –simulation model for data transmission with cascade turbo-encoding with the purpose to research encoding effectiveness for protection from errors in digital telecommunication channels.uk_UA
dc.description.abstractThe features of using noise resistant encoding for protection from errors in digital data transmission channels with phase modulation have been analyzed. The building principles and encoder and decoder schemes of turbo-code were observed. The digital data transmission system with outer and inner turbo-encoder has been developed. The recommendations to type and structure of cascade encoder components have been given. Analytical relationships and research results describing bit error probability of cascade turbo-encoder components are represented. By using simulative modeling tools Matlab-Simulink the basic characteristics and features of digital transmission channel with cascade turbo-encoding and digital phase modulation were researched. The energy benefit gained by using cascade structures has been defined.uk_UA
dc.identifier.citationBoiko J. M. Improvements encoding energy benefit in protected telecommunication data transmission channels / J. M. Boiko, A. I. Eromenko // Communications. – 2014. – Vol. 2, iss. 1 (July). – P. 7-14.uk_UA
dc.identifier.issn2328-5966
dc.identifier.urihttps://elar.khmnu.edu.ua/handle/123456789/5562
dc.language.isoenuk_UA
dc.publisherScience Publishing Group, U.S.A.uk_UA
dc.subjectNoise Resistant Encodinguk_UA
dc.subjectCascade Encodinguk_UA
dc.subjectTurbo-Encoderuk_UA
dc.subjectEncoding Energy Benefituk_UA
dc.titleImprovements encoding energy benefit in protected telecommunication data transmission channelsuk_UA
dc.typeСтаттяuk_UA
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Кафедра телекомунікацій, медійних та інтелектуальних технологій