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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">moitvivt</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Моделирование, оптимизация и информационные технологии</journal-title>
        <trans-title-group xml:lang="en">
          <trans-title>Modeling, Optimization and Information Technology</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn pub-type="epub">2310-6018</issn>
      <publisher>
        <publisher-name>Издательство</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.26102/2310-6018/2024.47.4.019</article-id>
      <article-id pub-id-type="custom" custom-type="elpub">1725</article-id>
      <title-group>
        <article-title xml:lang="ru">Разработка адаптивного экспоненциального алгоритма декодирования минимальной суммы</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>Development of adaptive exponential min sum decoding algorithm</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <contrib-id contrib-id-type="orcid">0000-0003-2252-2750</contrib-id>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Чжан</surname>
              <given-names>Вэйцзя</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Zhang</surname>
              <given-names>Weijia</given-names>
            </name>
          </name-alternatives>
          <email>466024965zhang@gmail.com</email>
          <xref ref-type="aff">aff-1</xref>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0003-1569-5493</contrib-id>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Мухамад</surname>
              <given-names>Ибрагим</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Mouhamad</surname>
              <given-names>Ibrahem</given-names>
            </name>
          </name-alternatives>
          <email>ibragim1@tpu.ru</email>
          <xref ref-type="aff">aff-2</xref>
        </contrib>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0003-1716-4581</contrib-id>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Саклаков</surname>
              <given-names>Василий Михайлович</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Saklakov</surname>
              <given-names>Vasiliy Mikhailovich</given-names>
            </name>
          </name-alternatives>
          <email>saklavas@tpu.ru</email>
          <xref ref-type="aff">aff-3</xref>
        </contrib>
      </contrib-group>
      <aff-alternatives id="aff-1">
        <aff xml:lang="ru">Томский политехнический университет</aff>
        <aff xml:lang="en">Tomsk Polytechnic University</aff>
      </aff-alternatives>
      <aff-alternatives id="aff-2">
        <aff xml:lang="ru">Томский политехнический университет</aff>
        <aff xml:lang="en">Tomsk Polytechnic University</aff>
      </aff-alternatives>
      <aff-alternatives id="aff-3">
        <aff xml:lang="ru">Томский политехнический университет</aff>
        <aff xml:lang="en">Tomsk Polytechnic University</aff>
      </aff-alternatives>
      <pub-date pub-type="epub">
        <day>01</day>
        <month>01</month>
        <year>2026</year>
      </pub-date>
      <volume>1</volume>
      <issue>1</issue>
      <elocation-id>10.26102/2310-6018/2024.47.4.019</elocation-id>
      <permissions>
        <copyright-statement>Copyright © Авторы, 2026</copyright-statement>
        <copyright-year>2026</copyright-year>
        <license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/">
          <license-p>This work is licensed under a Creative Commons Attribution 4.0 International License</license-p>
        </license>
      </permissions>
      <self-uri xlink:href="https://moitvivt.ru/ru/journal/article?id=1725"/>
      <abstract xml:lang="ru">
        <p>В статье представлен оптимизированный алгоритм декодирования минимальной суммы (MS) с низкой сложностью и высокой производительностью декодирования для коротких кодов LDPC. Алгоритм MS имеет низкую вычислительную сложность и прост в развертывании. По сравнению с алгоритмом декодирования распространения убеждения (BP) и отношения правдоподобия BP (LLR-BP) он показывает разрыв в производительности декодирования, но алгоритм декодирования MS имеет высокий потенциал оптимизации. Для улучшения производительности декодирования традиционного алгоритма MS в операции обновления контрольных узлов (CN) алгоритма MS вводится вторичная внешняя информация и оптимизируется как адаптивный экспоненциальный поправочный коэффициент (AECF). Оптимизированный алгоритм MS назван адаптивным экспоненциальным алгоритмом декодирования MS (AEMS). Эффективность декодирования алгоритма AEMS для обычных, нерегулярных и LDPC-кодов консультативного комитета по системам космических данных (CCSDS) была всесторонне протестирована, затем был проведен анализ и сравнение сложности алгоритма AEMS с другими алгоритмами декодирования. Результаты показывают, что алгоритм AEMS превосходит алгоритмы смещенного MS (OMS) и нормализованного MS (NMS) по производительности декодирования, а также превосходит алгоритм BP по мере постепенного увеличения отношения сигнал/шум (SNR).</p>
      </abstract>
      <trans-abstract xml:lang="en">
        <p>This paper presents an optimized min sum (MS) decoding algorithm with low complexity and high decoding performance for LDPC short codes. The MS algorithm has low computational complexity and is simple to deploy. The MS decoding algorithm, while demonstrating a performance gap compared to the belief propagation (BP) and likelihood ratio BP (LLR-BP) decoding algorithms, shows significant potential for optimization. To improve the decoding performance of traditional MS algorithm, secondary external information is introduced into the control node (CNs) update operations of MS algorithm and optimized as adaptive exponential correction factor (AECF). The optimized MS algorithm is named as adaptive exponential exponential MS decoding algorithm (AEMS). The decoding efficiency of the AEMS algorithm for regular, irregular and LDPC codes of the Consultative Committee on Space Data Systems (CCSDS) was extensively tested, then the complexity of the AEMS algorithm was analyzed and compared with other decoding algorithms. The results show that the AEMS algorithm outperforms the offset MS (OMS) and normalized MS (NMS) algorithms in decoding performance, and outperforms the BP algorithm as the signal-to-noise ratio (SNR) gradually increases.</p>
      </trans-abstract>
      <kwd-group xml:lang="ru">
        <kwd>LDPC</kwd>
        <kwd>адаптивный экспоненциальный алгоритм</kwd>
        <kwd>минимальная сумма</kwd>
        <kwd>низкая сложность</kwd>
        <kwd>LLR-BP</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <kwd>LDPC</kwd>
        <kwd>adaptive exponential algorithm</kwd>
        <kwd>min sum</kwd>
        <kwd>low complexity</kwd>
        <kwd>LLR-BP</kwd>
      </kwd-group>
      <funding-group>
        <funding-statement xml:lang="ru">Исследование выполнено без спонсорской поддержки.</funding-statement>
        <funding-statement xml:lang="en">The study was performed without external funding.</funding-statement>
      </funding-group>
    </article-meta>
  </front>
  <back>
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    <fn-group>
      <fn fn-type="conflict">
        <p>The authors declare that there are no conflicts of interest present.</p>
      </fn>
    </fn-group>
  </back>
</article>