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Electronic Colloquium on Computational Complexity

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All reports by Author Sotiris Nikoletseas:

TR01-099 | 1st October 2001
Dimitrios Koukopoulos, Sotiris Nikoletseas, Paul Spirakis

The Range of Stability for Heterogeneous and FIFO Queueing Networks

In this paper, we investigate and analyze for the first time the
stability properties of heterogeneous networks, which use a
combination of different universally stable queueing policies for
packet routing, in the Adversarial Queueing model. We
interestingly prove that the combination of SIS and LIS policies,
LIS and NTS policies, ... more >>>

TR00-011 | 27th January 2000
Sotiris Nikoletseas, Paul Spirakis

Efficient Communication Establishment in Extremely Unreliable Large Networks

We consider here a large network of $n$ nodes which supports
only the following unreliable basic communication primitive:
when a node requests communication then this request
{\em may fail}, independently of other requests, with probability
$f<1$. Even if it succeeds, the request is answered by returning
a stable link to ... more >>>

ISSN 1433-8092 | Imprint