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VERSION:2.0
PRODID:IEEE vTools.Events//EN
CALSCALE:GREGORIAN
BEGIN:VTIMEZONE
TZID:Asia/Shanghai
BEGIN:STANDARD
DTSTART:19910915T010000
TZOFFSETFROM:+0900
TZOFFSETTO:+0800
TZNAME:CST
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BEGIN:VEVENT
DTSTAMP:20251124T133725Z
UID:85D5B745-FDD0-4BAD-96CF-9747E20D25DC
DTSTART;TZID=Asia/Shanghai:20251123T162000
DTEND;TZID=Asia/Shanghai:20251123T180000
DESCRIPTION:Invited by IEEE Chengdu ComSoc Chengdu Chapter\, Distinguished 
 Lecturer\, Prof. Eiji OKI (Kyoto University) will give a invited talk at C
 hengdu\, on 16:20~18:00\, Nov. 24\, 2025.\n\nThe talk information is shown
  below.\n\nTalk title: Scaling Optical Circuit-Switched Multi-Stage Networ
 ks Ensuring Performance Quality in Data Centers\n\nSpeaker: Eiji Oki\, Kyo
 to University\, Kyoto\, Japan\n\nAbstract: This talk explores advancements
  in optical circuit switching for multi-stage networks\, a key architectur
 e in next-generation data centers. Optical switching is valued for its hig
 h transmission capacity and energy efficiency\, ensuring stable communicat
 ion through dedicated connections during data transmission. Data centers r
 equire scalable network architectures to support large-scale data processi
 ng. Among them\, CLOS networks enable efficient resource allocation with h
 ierarchical switch interconnections. This talk focuses on optimizing optic
 al-circuit-switched CLOS networks to expand the switching network size whi
 le maintaining controlled blocking quality. The talk begins with comparing
  packet-switched and circuit-switched networks\, followed by CLOS network 
 structures and their variations\, and an analysis of design models with th
 e strict non-blocking condition or an admissible blocking probability guar
 antee. Key performance metrics\, including switching network size and comp
 utational efficiency\, are thoroughly evaluated from theoretical and pract
 ical perspectives. Drawing on recent research\, the talk discusses the cha
 llenges of scaling CLOS networks and proposes directions for future develo
 pment.\n\nCo-sponsored by:  International Joint Research Center for Advanc
 ed Wireless Communications Technology\n\nSpeaker(s): Eiji Oki\, Eiji Oki\n
 \nAgenda: \nNov. 24\, 2025\n\n16:20~16:30\, Introduction to the speaker\, 
 Prof. Eiji OKI (Kyoto University)\n\n*hosted by Chair of IEEE ComSoc Cheng
 du Chapter\n\n16:30~17:10\, Talk given by Prof. Eiji OKI (Kyoto University
 )\n\n17:10~17:30\, Q&amp;A\n\nRoom: 704\, Bldg: Main building\, UESTC Qingshui
 he Campus\, Xiyuan Avenue 2006\, West High-Tech Zone\, Chengdu\, Sichuan\,
  China\, 611731
LOCATION:Room: 704\, Bldg: Main building\, UESTC Qingshuihe Campus\, Xiyuan
  Avenue 2006\, West High-Tech Zone\, Chengdu\, Sichuan\, China\, 611731
ORGANIZER:wugang99@uestc.edu.cn
SEQUENCE:22
SUMMARY:Invited talk by Prof. Eiji OKI (IEEE Fellow\, ComSoc Distinguished 
 Lecturer)
URL;VALUE=URI:https://events.vtools.ieee.org/m/516860
X-ALT-DESC:Description: &lt;br /&gt;&lt;p&gt;Invited by IEEE Chengdu ComSoc Chengdu Cha
 pter\, Distinguished Lecturer\, Prof. Eiji OKI (&lt;span style=&quot;font-family: 
 Arial\;&quot;&gt;K&lt;/span&gt;y&lt;span style=&quot;font-family: Arial\;&quot;&gt;oto University) will 
 give a invited talk at Chengdu\, on 16:20~18:00\, Nov. 24\, 2025.&lt;/span&gt;&lt;/
 p&gt;\n&lt;p&gt;The talk information is shown below.&lt;/p&gt;\n&lt;p&gt;&amp;nbsp\;&lt;span style=&quot;fo
 nt-family: Arial\;&quot;&gt;Talk&lt;/span&gt; title: Scaling Optical Circuit-Switched Mu
 lti-Stage Networks Ensuring Performance Quality in Data Centers&lt;/p&gt;\n&lt;p cl
 ass=&quot;MsoNormal&quot; align=&quot;justify&quot;&gt;Speaker: &lt;span style=&quot;font-family: Arial\;
 &quot;&gt;Eiji Oki\, K&lt;/span&gt;y&lt;span style=&quot;font-family: Arial\;&quot;&gt;oto University\, 
 Kyoto\, Japan&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; align=&quot;justify&quot;&gt;Abstract: T
 his talk explores advancements in optical circuit switching for multi-stag
 e networks\, a key architecture in next-generation data centers. Optical s
 witching is valued for its high transmission capacity and energy efficienc
 y\, ensuring stable communication through&amp;nbsp\;dedicated connections duri
 ng data transmission. Data centers require scalable network architectures 
 to support large-scale data processing. Among them\, CLOS networks enable 
 efficient resource allocation with hierarchical switch interconnections. T
 his talk focuses on optimizing optical-circuit-switched CLOS networks to e
 xpand the switching network size while maintaining controlled blocking qua
 lity. The talk begins with comparing packet-switched and circuit-switched 
 networks\, followed by CLOS network structures and their variations\, and 
 an analysis of design models with the strict non-blocking condition or an 
 admissible blocking probability guarantee. Key performance metrics\, inclu
 ding switching network size and computational efficiency\, are thoroughly 
 evaluated from theoretical and practical perspectives. Drawing on recent r
 esearch\, the talk discusses the challenges of scaling CLOS networks and p
 roposes directions for future development.&lt;/p&gt;&lt;br /&gt;&lt;br /&gt;Agenda: &lt;br /&gt;&lt;p
 &gt;&lt;span style=&quot;font-family: Arial\;&quot;&gt;&lt;br&gt;Nov. 24\, 2025&lt;/span&gt;&lt;/p&gt;\n&lt;p&gt;&lt;spa
 n style=&quot;font-family: Arial\;&quot;&gt;16:20~16:30\, &lt;/span&gt;&lt;span style=&quot;font-fami
 ly: Arial\;&quot;&gt;Introduction to the speaker\, Prof. Eiji OKI (Kyoto Universit
 y)&lt;/span&gt;&lt;/p&gt;\n&lt;p&gt;&lt;span style=&quot;font-family: Arial\;&quot;&gt;&amp;nbsp\;*hosted by Cha
 ir of IEEE ComSoc Chengdu Chapter&lt;/span&gt;&lt;/p&gt;\n&lt;p&gt;&lt;span style=&quot;font-family:
  Arial\;&quot;&gt;16:30~17:10\, Talk given by Prof. Eiji OKI (Kyoto University)&lt;/s
 pan&gt;&lt;/p&gt;\n&lt;p&gt;&lt;span style=&quot;font-family: Arial\;&quot;&gt;17:10~17:30\, Q&amp;amp\;A&lt;/sp
 an&gt;&lt;/p&gt;
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