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Towards a Mobility Metric for Comparable & Reproducible Results in Ad Hoc Networks Research (poster abstract)

Pérez-Costa, X.; Bettstetter, C.; Hartenstein, Hannes

The performance of a mobile ad hoc network depends on its ability to adapt to changes in the
network topology. It is therefore important to understand the relation between node mobility and
topology dynamics. While the input parameters of a mobility model allow for generating different
simulation scenarios (e.g., by selecting the speed, pause time, system area, and number of
nodes), the relation to the actually generated degree of topology dynamics is usually not
immediate. Thus, a translation of the mobility model to the resulting topology dynamics is
required. A natural way to do this is to introduce the topology change rate (TCR), defined as
the number of link changes per time unit as observed by a single node. If we measure the
network performance versus the TCR instead of versus ‘incidental’ input parameters of a mobility
model, a higher level of abstraction of the results will be achieved, and the reproducability
and comparability of the results will be enhanced. This short paper derives in an analytical
manner the TCR in a scenario where nodes move according to the random waypoint (RWP)
model [5], being the most heavily used mobility model in reseach on ad hoc networks. ... mehr

Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2003
Sprache Englisch
Identifikator ISSN: 1559-1662, 1931-1222
KITopen-ID: 1000004169
Erschienen in ACM SIGMOBILE mobile computing and communications review
Verlag Association for Computing Machinery (ACM)
Band 7
Heft 4
Seiten 58-60
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