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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">bsuir</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады БГУИР</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady BGUIR</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7648</issn><issn pub-type="epub">2708-0382</issn><publisher><publisher-name>БГУИР</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35596/1729-7648-2026-24-4-63-71</article-id><article-id custom-type="elpub" pub-id-type="custom">bsuir-4405</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Адаптивное управление модуляцией в системах связи видимым светом на основе совместного анализа коэффициента Херста и локальной оценки производной отношения сигнал/шум. Часть 1. Теоретические основы и разработка алгоритма</article-title><trans-title-group xml:lang="en"><trans-title>Adaptive Modulation Control in Visible-Light Communication Systems Based on a Joint Analysis of the Hurst Exponent and Local Estimation of the Signal-to-Noise Ratio Derivative. Part 1. Theoretical Foundations and Algorithm Development</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьёв</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Salauyou</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Соловьёв Алексей Николаевич, асп. каф. информационных радиотехнологий</p><p>220076, Минск, ул. Ф. Скорины, 8/2</p><p>Тел.: + 375 17 360-15-02</p></bio><bio xml:lang="en"><p>Salauyou Aliaksei, Postgraduate of Information Radiotechnologies Department</p><p>220076, Minsk, F. Skoriny St., 8/2</p></bio><email xlink:type="simple">alexs.platforma@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Половеня</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Palavenia</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Половеня С. И., канд. техн. наук, доц., декан факультета электросвязи</p><p>220076, Минск, ул. Ф. Скорины, 8/2</p></bio><bio xml:lang="en"><p>Palavenia S., Cand. Sci. (Tech.), Associate Professor, Dean of the Faculty of Telecommunications</p><p>Minsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусская государственная академия связи</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State Academy of Communications</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>08</month><year>2026</year></pub-date><volume>24</volume><issue>4</issue><fpage>63</fpage><lpage>71</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соловьёв А.Н., Половеня С.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Соловьёв А.Н., Половеня С.И.</copyright-holder><copyright-holder xml:lang="en">Salauyou A., Palavenia S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://doklady.bsuir.by/jour/article/view/4405">https://doklady.bsuir.by/jour/article/view/4405</self-uri><abstract><p>Предложен алгоритм адаптивного управления модуляцией для систем связи видимым светом, использующий совместный анализ коэффициента Херста и локальной оценки производной отношения сигнал/шум. Алгоритм использует асимметричную логику переключения: повышение порядка модуляции разрешается только при одновременном выполнении условий положительной оценки локальной произ- водной и высокой персистентности временного ряда, тогда как понижение осуществляется немедленно при обнаружении направленного ухудшения. Пороговые параметры алгоритма обоснованы путем анализа тепловых карт выигрыша по скорости, построенных для экспериментальных сценариев. Предлагаемый алгоритм обеспечивает уменьшение числа переключений порядка модуляции относительно классического порогового метода в диапазоне от 7,1 до 81,2 % в зависимости от характера динамики канала.</p></abstract><trans-abstract xml:lang="en"><p>An adaptive modulation control algorithm for visible-light communication systems is proposed. It utilizes a combined analysis of the Hurst exponent and a local estimate of the signal-to-noise ratio derivative. The algorithm utilizes asymmetric switching logic: modulation order upshifts are permitted only when the conditions of a positive local derivative estimate and high time series persistence are simultaneously met, while downshifts are performed immediately upon detection of a directional degradation. The algorithm’s threshold parameters are substantiated by analyzing speed-gain heat maps constructed for experimental scenarios. The proposed algorithm reduces the number of modulation order switches relative to the classical threshold method by 7.1 to 81.2%, depending on the channel dynamics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>адаптивная модуляция</kwd><kwd>связь видимым светом</kwd><kwd>коэффициент Херста</kwd><kwd>локальная оценка производной</kwd><kwd>SNR</kwd><kwd>R/S-анализ</kwd><kwd>долговременная память канала</kwd></kwd-group><kwd-group xml:lang="en"><kwd>adaptive modulation</kwd><kwd>visible light communication</kwd><kwd>Hurst exponent</kwd><kwd>local derivative estimation</kwd><kwd>SNR</kwd><kwd>R/S analysis</kwd><kwd>long-term channel memory</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Komine, T. Fundamental Analysis for Visible-Light Communication System Using LED Lights / T. Komine, M. Nakagawa // IEEE Transactions on Consumer Electronics. 2004. Vol. 50, No 1. 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