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        <identifier>oai:ipsj.ixsq.nii.ac.jp:00092085</identifier>
        <datestamp>2025-01-21T15:09:29Z</datestamp>
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        <jpcoar:jpcoar xmlns:datacite="https://schema.datacite.org/meta/kernel-4/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcndl="http://ndl.go.jp/dcndl/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:jpcoar="https://github.com/JPCOAR/schema/blob/master/1.0/" xmlns:oaire="http://namespace.openaire.eu/schema/oaire/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rioxxterms="http://www.rioxx.net/schema/v2.0/rioxxterms/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="https://github.com/JPCOAR/schema/blob/master/1.0/" xsi:schemaLocation="https://github.com/JPCOAR/schema/blob/master/1.0/jpcoar_scm.xsd">
          <dc:title>無線・直収型のセンサデータ収集方式における輻轌制御の最適パラメータに関する検討</dc:title>
          <dc:title xml:lang="en">A Study on Congestion Control Parameter Selection in Wireless Direct Sensor Data Collection System.</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>沖村, 光一郎</jpcoar:creatorName>
            <jpcoar:creatorName>問瀬, 憲一</jpcoar:creatorName>
            <jpcoar:creatorName>中野, 敬介</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Koichiro, Okimura</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Kenichi, Mase</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Keisuke, Nakano</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">ポスター</jpcoar:subject>
          <datacite:description descriptionType="Other">複数のセンサ端末が周期的にデータを取得し，基地局に CSMA/CA を用いて送信する予約スロットを用いたアクセス制御方式において，端末数が増加すると予約スロットの空きがなくなり送信できないセンサ端末が発生する．そこでデータ取得周期を延長する輻轤制御を用いることで予約スロットを確保し，アクセス効率を高める手法の検討が進められている．本稿では，輻轤を判定するための判定区間と輻轌制御内での周期の変化量について，シミュレーションにより検討，評価を行う．シミュレーション結果より適切な判定区間長を設定し，周期の変化量を少なくすれば輻轤制御の効果が高まり，スループットとスループットの公平性が向上することを示した．</datacite:description>
          <datacite:description descriptionType="Other">This paper deals with a wireless periodical sensor data collection system, which accommodates a number of sensor nodes directly to the base station. The system uses media access using the reserved slots with CSMA/CA. When the number of sensor nodes increases, congestion occurs because the number of free slots decreases, we propose to apply source rate control to avoid congestion. In this report, parameters such as the control interval detecting congestion and the amount of change in the data acquisition interval are studied by simulation. It is found that throughput and fairness of received throughput increase by appropriately adjusting these parameters.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2013-05-09</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/92085</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AA11838947</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告ユビキタスコンピューティングシステム（UBI）</jpcoar:sourceTitle>
          <jpcoar:volume>2013-UBI-38</jpcoar:volume>
          <jpcoar:issue>39</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>4</jpcoar:pageEnd>
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            <datacite:date dateType="Available">2100-01-01</datacite:date>
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