BEGIN:VCALENDAR
PRODID:-//eluceo/ical//2.0/EN
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:www.tcs.tifr.res.in/event/1262
DTSTAMP:20230914T125957Z
SUMMARY:Communication With Adversary Identification in Byzantine Multiple A
 ccess Channels
DESCRIPTION:Speaker: Neha Sangwan\n\nAbstract: \nWe introduce the problem o
 f determining the identity of a byzantine user (internal adversary) in a c
 ommunication system. We consider a two-user discrete memoryless multiple a
 ccess channel where either user may deviate from the prescribed behaviour.
  Owing to the noisy nature of the channel\, it may be overly restrictive t
 o attempt to detect all deviations. In our formulation\, we only require d
 etecting deviations which impede the decoding of the non-deviating user's 
 message. When neither user deviates\, correct decoding is required. When o
 ne user deviates\, the decoder must either output a pair of messages of wh
 ich the message of the non-deviating user is correct or identify the devia
 ting user. The users and the receiver do not share any randomness. The res
 ults include a characterization of the set of channels where communication
  is feasible\, and an inner and outer bound on the capacity region.\n \nTh
 is is based on a joint work with Mayank Bakshi\, Bikash Kumar Dey and Vino
 d M. Prabhakaran\, and was presented at ISIT\, 2021.\n
URL:https://www.tcs.tifr.res.in/web/events/1262
DTSTART;TZID=Asia/Kolkata:20221230T170000
DTEND;TZID=Asia/Kolkata:20221230T180000
LOCATION:A201
END:VEVENT
END:VCALENDAR