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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:20251028T084122Z
UID:A0E02E19-E9EB-47A1-884F-D844E5B1989E
DTSTART;TZID=Asia/Shanghai:20251027T100000
DTEND;TZID=Asia/Shanghai:20251027T113000
DESCRIPTION:Underwater Optical Wireless Communication (UOWC) is an emerging
  technology for realising high-bandwidth wireless networks in underwater e
 nvironments that can be far more dynamic than terrestrial ones. In this se
 minar\, we share our recent works on mobile UOWC where large beam-divergen
 ce emitters are often required when precise node tracking for link alignme
 nt is not possible. The high signal attenuation by water along with geomet
 ric spreading losses will significantly impact the optical link quality\, 
 which calls for careful link establishment including the proper selection 
 of signal wavelengths. Our recent findings on the inherent optical propert
 ies (IOPs) of underwater column have challenged the common notion that the
  blue-green spectrum is most suitable for UOWC\; and instead suggested the
  optimal signal wavelength to be selected based on the water type\, link d
 istance\, depth of UOWC and magnitude of geometric loss. Further findings 
 on the distribution of coastal IOPs and interference from sunlight led to 
 our proposal of a differential-signaling-based modulation using both long-
  and short-wavelength transmissions and optical reconfigurable intelligent
  surface (O-RIS) for UOWC within the euphotic zone.\n\nSpeaker(s): Boon-Ch
 ong Seet\, \n\nSouthwest Jiaotong University Xipu Campus\, school of infor
 mation science and technology\, Chengdu\, Sichuan\, China\, 611756
LOCATION:Southwest Jiaotong University Xipu Campus\, school of information 
 science and technology\, Chengdu\, Sichuan\, China\, 611756
ORGANIZER:liyan@swjtu.edu.cn
SEQUENCE:0
SUMMARY:IEEE R10 VTS Chengdu Chapter Supported Distinguished Lecture Talk f
 or Prof. Boon-Chong Seet
URL;VALUE=URI:https://events.vtools.ieee.org/m/510656
X-ALT-DESC:Description: &lt;br /&gt;&lt;p&gt;&lt;span lang=&quot;EN-NZ&quot; style=&quot;font-size: 11.0p
 t\; line-height: 115%\; font-family: &#39;Aptos&#39;\,sans-serif\; mso-ascii-theme
 -font: minor-latin\; mso-fareast-font-family: 等线\; mso-fareast-theme-f
 ont: minor-fareast\; mso-hansi-theme-font: minor-latin\; mso-bidi-font-fam
 ily: &#39;Times New Roman&#39;\; mso-bidi-theme-font: minor-bidi\; mso-ansi-langua
 ge: EN-NZ\; mso-fareast-language: ZH-CN\; mso-bidi-language: AR-SA\;&quot;&gt;Unde
 rwater Optical Wireless Communication (UOWC) is an emerging technology for
  realising high-bandwidth wireless networks in underwater environments tha
 t can be far more dynamic than terrestrial ones. In this seminar\, we shar
 e our recent works on mobile UOWC where large beam-divergence emitters are
  often required when precise node tracking for link alignment is not possi
 ble. The high signal attenuation by water along with geometric spreading l
 osses will significantly impact the optical link quality\, which calls for
  careful link establishment including the proper selection of signal wavel
 engths. Our recent findings on the inherent optical properties (IOPs) of u
 nderwater column have challenged the common notion that the blue-green spe
 ctrum is most suitable for UOWC\; and instead suggested the optimal signal
  wavelength to be selected based on the water type\, link distance\, depth
  of UOWC and magnitude of geometric loss. Further findings on the distribu
 tion of coastal IOPs and interference from sunlight led to our proposal of
  a differential-signaling-based modulation using both long- and short-wave
 length transmissions and optical reconfigurable intelligent surface (O-RIS
 ) for UOWC within the euphotic zone.&lt;/span&gt;&lt;/p&gt;
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