| dc.contributor.author | Carvalho, Nuno | por |
| dc.contributor.author | Araújo, Filipe | por |
| dc.contributor.author | Rodrigues, Luís | por |
| dc.date.accessioned | 2009-02-10T13:11:42Z | por |
| dc.date.accessioned | 2014-11-14T16:24:08Z | |
| dc.date.available | 2009-02-10T13:11:42Z | por |
| dc.date.available | 2014-11-14T16:24:08Z | |
| dc.date.issued | 2005-02 | por |
| dc.description.abstract | For many distributed applications, the Publish-Subscribe communication model emerges as a viable alternative to the Request-Reply model. It provides a strong decoupling among participants, simplify the reutilization of components and the non-stop reconfiguration of applications. Unfortunately, this strong decoupling also makes it hard to support Quality of Service (QoS) parameters, like bandwidth and latency, in an efficient manner. This paper presents a novel approach to support QoS parameters in publish-subscribe systems. It proposes a model that supports the decoupling of QoS characterization from the event characterization while offering, at the same time, an uniform treatment of both aspects. Furthermore, it describes the architecture of a distributed and scalable publish-subscribe broker with support for QoS. The broker, called IndiQoS, leverages on existing mechanisms to reserve resources in the underlying network and on an overlay network of peer-to-peer rendezvous nodes, to automatically select QoS-capable paths. By avoiding flooding of either QoS reservations or link-state information, IndiQoS is able to scale with respect to network size and number of reservations. Experimental results show the validity of our approach | por |
| dc.identifier.uri | http://hdl.handle.net/10451/14221 | por |
| dc.identifier.uri | http://repositorio.ul.pt/handle/10455/2925 | por |
| dc.language.iso | por | por |
| dc.publisher | Department of Informatics, University of Lisbon | por |
| dc.relation.ispartofseries | di-fcul-tr-05-4 | por |
| dc.subject | por | |
| dc.title | Scalable QoS-Based Event Routing in Publish-Subscribe Systems | por |
| dc.type | report | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | por |
| rcaap.type | report | por |
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