Poster Open Access

Adaptive Quantization of the Polar Successive Cancellation Decoder

Ertuğrul, Yiğit; Arikan, Erdal


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  <identifier identifierType="DOI">10.5281/zenodo.3565299</identifier>
  <creators>
    <creator>
      <creatorName>Ertuğrul, Yiğit</creatorName>
      <givenName>Yiğit</givenName>
      <familyName>Ertuğrul</familyName>
      <affiliation>Polaran Ltd.</affiliation>
    </creator>
    <creator>
      <creatorName>Arikan, Erdal</creatorName>
      <givenName>Erdal</givenName>
      <familyName>Arikan</familyName>
      <affiliation>Polaran Ltd.</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Adaptive Quantization of the Polar Successive Cancellation Decoder</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2019</publicationYear>
  <subjects>
    <subject>Polar Codes</subject>
    <subject>Polar Successive Cancellation Decoder</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2019-12-06</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Poster</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/3565299</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.3565298</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/epic_h2020</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Polar codes and its implementation challenges are an active study field&amp;nbsp;since [1]. SC decoding algorithm is the well known polar decoding algortihm&amp;nbsp;described in [1]. The chip area of the SC decoder is dominated by memory&amp;nbsp;and register chains in the deeply-pipelined architecture [2]. An adaptive&amp;nbsp;quantization technique is proposed to reduce the memory complexity of the&amp;nbsp;polar SC decoder. Due to polarization of synthesized bit channels, some&amp;nbsp;portion of the bits could be decoded by diminishing the log-likelihood ratios&amp;#39;&lt;br&gt;
(LLRs) bit precision with a negligible communications performance loss.&amp;nbsp;Unlike standard SC decoding, which operates with constant bit precision&amp;nbsp;throughout decoding, this method utilizes varying number of bits to&amp;nbsp;represent LLRs among the levels of the decoder. Bit precision of each&amp;nbsp;decoding level could be determined by a heuristic method. Another method&amp;nbsp;is motivated by maximizing the mutual information between the levels of the&amp;nbsp;decoder [3]. Adaptive quantization method reduces the memory complexity&amp;nbsp;of the decoder proportional to coding rate.&lt;/p&gt;</description>
  </descriptions>
  <fundingReferences>
    <fundingReference>
      <funderName>European Commission</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/501100000780</funderIdentifier>
      <awardNumber awardURI="info:eu-repo/grantAgreement/EC/H2020/760150/">760150</awardNumber>
      <awardTitle>Enabling Practical Wireless Tb/s Communications with Next Generation Channel Coding</awardTitle>
    </fundingReference>
  </fundingReferences>
</resource>
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