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UID:614@lincs.fr
DTSTART;TZID=Europe/Paris:20210519T140000
DTEND;TZID=Europe/Paris:20210519T150000
DTSTAMP:20210520T073147Z
URL:https://www.lincs.fr/events/talk-by-francesca-bassi/
SUMMARY:Radio and compute resource allocation in C-RAN
DESCRIPTION:The principal tenet of C-RAN is the softwarization of the
 base-band signal processing\, which enables the sharing of compute
 resources among multiple radio heads. Resource allocation in C-RAN is
 constrained by the hard deadline within which the computation in the shared
 resource pool needs to happen to preserve the functionality of the
 system.\n&nbsp\;\nWhen the aggregate demand of compute resources in the
 pool exceeds the capacity\, a fraction of the radio packets is lost. A
 natural choice for the allocation policy is to minimize the loss rate. An
 alternative strategy is to maximize the PHY layer througput. Both
 strategies may be pursued by framing the allocation of compute resources as
 an optimization problem.\n&nbsp\;\nIn order to select the best strategy it
 is useful to consider the impact of the choice on upper layers. We consider
 the performance at the MAC layer\, after the HARQ process has taken place.
 Each packet lost due to lack of compute resources triggers an HARQ request
 of retransmission. If the loss happens on the last allowed transmission\,
 all the radio resources (present and past) spent for the message go to
 waste. This consideration suggests that a policy of allocation of the
 compute resources accounting for the retransmission age of the frame may
 increase the performance.
CATEGORIES:Seminars,Youtube
LOCATION:Zoom + LINCS\, 23 avenue d'Italie\, Paris\, 75013\, France
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TZID:Europe/Paris
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DTSTART:20210328T030000
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