Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/3610
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dc.contributor.authorTovar, Eduardo-
dc.contributor.authorVasques, Francisco-
dc.contributor.authorBurns, Alan-
dc.date.accessioned2014-02-03T14:32:40Z-
dc.date.available2014-02-03T14:32:40Z-
dc.date.issued1999-
dc.identifierDOI: 10.1109/EMRTS.1999.777464-
dc.identifier.isbn0-7695-0240-7-
dc.identifier.issn1068-3070-
dc.identifier.urihttp://hdl.handle.net/10400.22/3610-
dc.description.abstractIn this paper we address the real-time capabilities of P-NET, which is a multi-master fieldbus standard based on a virtual token passing scheme. We show how P-NET’s medium access control (MAC) protocol is able to guarantee a bounded access time to message requests. We then propose a model for implementing fixed prioritybased dispatching mechanisms at each master’s application level. In this way, we diminish the impact of the first-come-first-served (FCFS) policy that P-NET uses at the data link layer. The proposed model rises several issues well known within the real-time systems community: message release jitter; pre-run-time schedulability analysis in non pre-emptive contexts; non-independence of tasks at the application level. We identify these issues in the proposed model and show how results available for priority-based task dispatching can be adapted to encompass priority-based message dispatching in P-NET networks.por
dc.language.isoengpor
dc.publisherIEEEpor
dc.relation.ispartofseriesReal-Time Systems;-
dc.rightsclosedAccesspor
dc.titleAdding local priority-based dispatching mechanisms to P-NET networks: a fixed priority approachpor
dc.typearticlepor
dc.peerreviewedyespor
degois.publication.firstPage175por
degois.publication.lastPage184por
degois.publication.locationYorkpor
degois.publication.title11th Euromicro Conference on Real-Time Systems, 1999.por
dc.relation.publisherversionhttp://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=777464&abstractAccess=no&userType=instpor
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