Quality of Service in Indirect Communication Systems
F. Araújo and L. Rodrigues
Selected sections of this report were presented at the Ersads 2001,
European Research Seminar on Advances in Distributed Systems, 14-18
May 2001, Bertinoro (Forlė), Italy.
This paper outlines an architecture that intends to ensure Quality of
Service (QoS) to applications using the publisher-subscriber
paradigm. The key idea is to subscribe information not only by subject
and content but also according to QoS parameters. This must be done
with cooperation of all intervenients: publishers, which should tag
information they are producing with application-level QoS parameters;
subscribers, that do content-based QoS addressing; and message
brokers, which use a QoS based network infrastructure.
Also available extended report (gzip postscript), (pdf) .