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Wednesday, 06 January 2010 19:49 |
12:00 - Scheduling policies for networks with heavy-tailed traffic.
Μαρκάκης Μιχαήλ - Υποψήφιος Διδάκτορας ΜΙΤ
Περίληψη ομιλίας:
In the first part of this talk we study the impact of scheduling, in a
setting of parallel queues with a mix of heavy-tailed and light-tailed traffic.
We analyze queue-length unaware scheduling policies, such as round-robin,
randomized, and priority, and characterize their performance. We prove the
queue-length instability of Max-Weight scheduling, in the presence of
heavy-tailed traffic. Motivated by this, we analyze the performance of
Max-Weight-alpha scheduling, and establish conditions on the alpha-parameters,
under which the system is queue-length stable. We also introduce the
Max-Weight-log policy, which provides performance guarantees, without any
knowledge of the arriving traffic. In the second part of the talk we extend the
results on Max-Weight and Max-Weight-alpha scheduling to a single-hop network
with arbitrary topology, arbitrary scheduling constraints, and time-varying
connectivity.
13:30 - Λάζος Λουκάς
Assistant Proffessor at University of Arizona , USA
"Ανάθεση και Προστασία Καναλιών Σηματοδοσίας σε Γνωστικά Δίκτυα (Cognitive Radio Networks)"
Σύντομα Βιογραφικά:
Λάζος Λουκάς http://www.ee.washington.edu/research/nsl/home/llazos.html
Πληροφορίες:ΙΕΕΕ NTUA Student Branch, http://ieee.ntua.gr,
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