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UID:923@lincs.fr
DTSTART;TZID=Europe/Paris:20251112T140000
DTEND;TZID=Europe/Paris:20251112T150000
DTSTAMP:20251126T123442Z
URL:https://www.lincs.fr/events/user-side-opportunistic-channel-charting-l
 ocation-aware-access-point-selection/
SUMMARY:User-side Opportunistic Channel Charting & Location-Aware Access
 Point Selection
DESCRIPTION:Channel Charting (CC) is a promising tool for managing radio
 resources\, especially those tied to user location. Conventionally\, CC
 involves a dimensionality reduction of channel state information (CSI) to
 obtain a low-dimensional latent space. While conceived to be performed at
 the network side (e.g.\, base stations or access points)\, CC could be
 beneficial for end-devices. In practice\, end-user devices often have
 access to heterogeneous and non-cooperating networks\, with no
 coordination. In such a setup\, decision-making must occur on the user side
 to fully leverage available networks. For this reason\, user-side CC is
 particularly relevant. In this work\, we introduce a user-side CC
 framework: Opportunistic Channel Charting (OCC). OCC allows mobile devices
 to localize themselves in the radio environment opportunistically. Unlike
 CC\, OCC allows devices to build a chart from passively acquired CSI. This
 is done by monitoring the ambient wireless channels. Via real-world
 experiments\, using commodity devices\, we validate OCC. Our results show
 that OCC captures geometric information comparable to conventional CC in
 terms of trustworthiness and continuity while requiring no cooperation from
 surrounding devices. During measurements of CSI\, we also measure network
 quality. To exploit this\, we propose a new OCC-based Wi-Fi Access Point
 (AP) selection (OCCAPS).\n
CATEGORIES:Seminars,Youtube
LOCATION:Amphi 7\, 19 Place Marguerite Perey\, Palaiseau\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=19 Place Marguerite Perey\,
 Palaiseau\, France;X-APPLE-RADIUS=100;X-TITLE=Amphi 7:geo:0,0
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TZID:Europe/Paris
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DTSTART:20251026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
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