Connectivity Models
Abstract
The testing of the performance of delay tolerant communication
protocols and systems is usually done through simulation as i)
deployments are expensive and should be left to the final stage of the
development process, and ii) the number of varying parameters in these
systems is so high that it would be very hard to conduct thorough
testing of all the functionality within a single deployment. Therefore,
protocols are often plugged into mobility simulators to test their
performance; however, until recently, most of the testing has been
conducted with random mobility models which do not mirror reality.
Furthermore, despite disconnections playing a very prominent role in
the performance of any delay tolerant mobile system, most models do not
really account for it. A different approach to the performance
evaluation of this class of systems is the use of real traces of
movement collected in specific domains. However, these traces do not
allow for flexible performance testing, as they are specific for a
given scenario with fixed connectivity properties.
For these reasons, we designed the Connectivity Trace Generator (CTG),
a tool for the automatic generation of connectivity traces, which takes
as input real mobility traces and is able to output a set of traces
with similar connectivity properties. This allows system designers to
investigate the impact of the variation of connectivity patterns,
number of hosts, and other parameters on the protocol or system under
investigation.
People Involved
Software Download
We are happy to share the code of the Connectivity Trace Generator with you. The code can be
obtained by filling a request form that can be found here.
Publications
Mobility Models for Systems
Evaluation. A Survey
Mirco
Musolesi and Cecilia
Mascolo
Book
Chapter in Middleware for Network Eccentric and Mobile Applications.
Benoît Garbinato, Hugo Miranda andd Luís Rodrigues Editors. Springer.
2009.
[PDF] CTG: A Connectivity Trace Generator for Testing the Performance of Opportunistic Mobile Systems
Roberta Calegari, Mirco Musolesi, Franco Raimondi and Cecilia Mascolo.
In
Proceedings of the European Software Engineering Conference and the
International ACM SIGSOFT Symposium on the Foundations of Software
Engineering (ESEC/FSE07). Dubrovnik, Croatia. September 2007. ACM Press.
[PDF]
License
This library is free software; you can redistribute it
and/or modify under the terms of the GNU Lesser
General Public License as published by Free Software
Foundation; either version 2.1 of the License, or (at your option) any
later version.
This
library is distributed in the hope it will be useful but without any
warranty, without even the implied warranty of merchantability or
fitness for a particular purpose. See the GNU Lesser
General Public License for more details.
Contact
Please contact Mirco Musolesi
sending an email to mirco.musolesi [AT] cl.cam.ac.uk
|
