BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//wp-events-plugin.com//7.2.3.1//EN
BEGIN:VEVENT
UID:455@lincs.fr
DTSTART;TZID=Europe/Paris:20190529T140000
DTEND;TZID=Europe/Paris:20190529T150000
DTSTAMP:20190604T105550Z
URL:https://www.lincs.fr/events/talk-by-ahmad-alammouri/
SUMMARY:Stability and Metastability of Traffic Dynamics in Uplink Random
 Access Networks
DESCRIPTION:\n\n\nThis talk is about the characterization of the
 stability\, metastability\, and the stationary regime of traffic dynamics
 in a single-cell uplink wireless system. The traffic is represented in
 terms of spatial birth-death processes\, in which users arrive as a Poisson
 point process in time and space\, each with a file to transmit to the base
 station. The service rate of each user is based on its signal to
 interference plus noise ratio (SINR)\, where the interference is from other
 active users in the cell. Once the file is fully transmitted\, the user
 leaves the cell. We derive the necessary and sufficient condition for
 network stability\, which is independent of the specific path loss function
 as long as it satisfies mild boundedness conditions. A novel observation\,
 shown through mean-field analysis and simulations\, is that for a certain
 range of arrival rates\, the network appears stable for possibly a long
 time\, but can suddenly become unstable. This property is called
 metastability which is widely known in statistical physics but rarely
 observed in wireless communication. Finally\, using mean-field analysis\,
 we propose a heuristic characterization of the network steady-state regime
 when it exists\, and demonstrate that it is tight for the whole range of
 arrival rates.&nbsp\;\n\n\n
CATEGORIES:Seminars,Youtube
LOCATION:Paris-Rennes Room (EIT Digital)\, 23 avenue d'Italie\, 75013
 Paris\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=23 avenue d'Italie\, 75013
 Paris\, France;X-APPLE-RADIUS=100;X-TITLE=Paris-Rennes Room (EIT
 Digital):geo:0,0
END:VEVENT
BEGIN:VTIMEZONE
TZID:Europe/Paris
X-LIC-LOCATION:Europe/Paris
BEGIN:DAYLIGHT
DTSTART:20190331T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
END:DAYLIGHT
END:VTIMEZONE
END:VCALENDAR