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BEGIN:VEVENT
UID:963@lincs.fr
DTSTART;TZID=Europe/Paris:20261105T140000
DTEND;TZID=Europe/Paris:20261105T150000
DTSTAMP:20261007T150737Z
URL:https://www.lincs.fr/events/variable-length-stop-feedback-codes/
SUMMARY:Variable-length stop-feedback codes
DESCRIPTION:This work discusses the fundamental limits of Variable-Length
 Stop-Feedback (VLSF) communication systems\, in which transmission
 continues until an acknowledgment is received. It focuses on developing
 analytical tools and decoding strategies that approach optimal performance
 under practical constraints. In one direction\, an optimization framework
 for sparse VLSF codes based on saddlepoint approximations is developed\,
 enabling efficient gradient-based optimization of decoding configurations
 for common memoryless channels such as AWGN\, binary symmetric\, and binary
 erasure channels. A refined decoding rule extending the conventional
 fixed-threshold strategy is also introduced\, yielding tighter
 achievability bounds. In another direction\, VLSF transmission over
 correlated noncoherent fading channels is studied. Reliability-guaranteed
 decoding strategies are established by deriving computable
 finite-blocklength bounds on information density\, which enable
 constructive decoding procedures and provide insight into the impact of
 channel correlation on system performance.
CATEGORIES:Seminars
LOCATION:Amphi 3\, 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 3:geo:0,0
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TZID:Europe/Paris
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DTSTART:20261025T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
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