GI Digital Library :: Auflistung nach Autor:in "Hahn, Katharina"

1 - 2 von 2

Konferenzbeitrag
Adaptive data dissemination in mobile ad-hoc networks
(Informatik 2005 – Informatik Live! Band 2, 2005) Böse, Joos-Hendrik; Bregulla, Frank; Hahn, Katharina; Scholz, Manuel
In this paper we examine data dissemination in MANETs using various push and pull based protocols and a combination of both. We evaluate the protocols considering the load for each node and the resulting data freshness. Furthermore we introduce an adaptive pull protocol which enhances dissemination and saves up to 13% of the network load achieving the same freshness rate as other protocols.
Konferenzbeitrag
Exploring transactional service properties for mobile service composition
(Mobile und Ubiquitäre Informationssysteme – Entwicklung, Implementierung und Anwendung, 2009) Hahn, Katharina; Schweppe, Heinz F.
Service oriented computing provides suitable means to technically support distributed collaboration of heterogeneous devices such as in mobile environments. However, wireless communication links are unstable. When supporting collaboration in such environments, failures have to be optimistically coped with in order to still provide suitable correctness guarantees and avoid inconsistent system states. In this paper, we explore transactional properties of services in order to reasonably integrate transactional coordination with composition of services in mobile networks and provide suitable correctness guarantees.