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UID:916@lincs.fr
DTSTART;TZID=Europe/Paris:20251203T140000
DTEND;TZID=Europe/Paris:20251203T150000
DTSTAMP:20260116T145954Z
URL:https://www.lincs.fr/events/fundamental-limits-of-distributed-detectio
 n-in-the-low-power-regime/
SUMMARY:Fundamental Limits of Distributed Detection in the Low-Power Regime
DESCRIPTION:In this talk we consider distributed detection systems (sensor
 networks) where the sensors are subject to stringent communication
 constraints\, mostly stringent power or bandwidth constraints.\nWe present
 the optimal Stein-error exponents for different distributed detection
 systems and explain the communication and testing schemes that achieve
 these optimal exponents. Our results reveal interesting dichotomies of the
 Stein-exponent with respect to the connectivity of the channel: If all
 inputs can lead to all outputs\, then the Stein-exponent under stringent
 (probability 1) power constraints equals the exponent of a local test at
 the decision center only. I.e.\, The sensors and their observations cannot
 improve this exponent. In contrast\, if the channel is degenerate the
 Stein-exponent is the same as when communication is over a noiseless
 channel. Under slightly less stringent power constraints (on expectation
 instead of probability 1) the Stein-exponent will depend on the exact
 channel law if the channel is fully connected and also on whether the power
 constraint is imposed under all hypotheses or not. We completely
 characterize the Stein-exponent also when stringent power constraints are
 imposed on expectation.
CATEGORIES:Seminars,Youtube
LOCATION:Amphi 4\, 19 Pl. Marguerite Perey\, Palaiseau\, 91120\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=19 Pl. Marguerite Perey\,
 Palaiseau\, 91120\, France;X-APPLE-RADIUS=100;X-TITLE=Amphi 4:geo:0,0
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TZID:Europe/Paris
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DTSTART:20251026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
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