<?xml version="1.0" encoding="ISO-8859-1"?><article 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">
<front>
<journal-meta>
<journal-id>1405-5546</journal-id>
<journal-title><![CDATA[Computación y Sistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Comp. y Sist.]]></abbrev-journal-title>
<issn>1405-5546</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Centro de Investigación en Computación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-55462024000200341</article-id>
<article-id pub-id-type="doi">10.13053/cys-28-2-4721</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Performance Analysis in Peer-to-Peer Networks with Collaborative Initial States]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Oregón]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivero-Ángeles]]></surname>
<given-names><![CDATA[Mario E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chimal-Eguía]]></surname>
<given-names><![CDATA[Juan C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Coyac-Torres]]></surname>
<given-names><![CDATA[Jorge E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Insituto Politécnico Nacional Centro de Investigación en Computación ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>341</fpage>
<lpage>352</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462024000200341&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462024000200341&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462024000200341&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Currently, the trends of the new generations of telecommunications (6G and beyond) point towards a non-centralized process, however, for these architectures where no central entity regulates the transmission and information sharing, collaboration among nodes becomes a major issue to provide an adequate service. To this end, in this paper, we study Peer-to-Peer (P2P) systems to obtain models that reproduce these technologies&#8217; operation and the collaboration mechanism. The behavior of these systems is modeled through a Continuous Time Markov Chain (CTMC), and later we develop a Discrete Event Simulation (DES) to validate the analytical results. For solving these processes, M/M/s type queues were used in order to analyze the impact of collaboration levels on the system performance.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Peer-to-peer (P2P) systems]]></kwd>
<kwd lng="en"><![CDATA[continuous time Markov chain (CTMC)]]></kwd>
<kwd lng="en"><![CDATA[collaboration mechanism]]></kwd>
<kwd lng="en"><![CDATA[discrete event simulation (DES)]]></kwd>
<kwd lng="en"><![CDATA[collaborative threshold (&#950;)]]></kwd>
</kwd-group>
</article-meta>
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