Publication
Adding local priority-based dispatching mechanisms to P-NET networks: a fixed priority approach
| dc.contributor.author | Tovar, Eduardo | |
| dc.contributor.author | Vasques, Francisco | |
| dc.contributor.author | Burns, Alan | |
| dc.date.accessioned | 2014-02-03T14:32:40Z | |
| dc.date.available | 2014-02-03T14:32:40Z | |
| dc.date.issued | 1999 | |
| dc.description.abstract | In 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.identifier.doi | 10.1109/EMRTS.1999.777464 | pt_PT |
| dc.identifier.isbn | 0-7695-0240-7 | |
| dc.identifier.issn | 1068-3070 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/3610 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | IEEE | por |
| dc.relation.ispartofseries | Real-Time Systems; | |
| dc.relation.publisherversion | http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=777464&abstractAccess=no&userType=inst | por |
| dc.title | Adding local priority-based dispatching mechanisms to P-NET networks: a fixed priority approach | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | York | por |
| oaire.citation.endPage | 184 | por |
| oaire.citation.startPage | 175 | por |
| oaire.citation.title | 11th Euromicro Conference on Real-Time Systems, 1999. | por |
| person.familyName | Tovar | |
| person.givenName | Eduardo | |
| person.identifier.ciencia-id | 6017-8881-11E8 | |
| person.identifier.orcid | 0000-0001-8979-3876 | |
| person.identifier.scopus-author-id | 7006312557 | |
| rcaap.rights | closedAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | 80b63d8a-2e6d-484e-af3c-55849d0cb65e | |
| relation.isAuthorOfPublication.latestForDiscovery | 80b63d8a-2e6d-484e-af3c-55849d0cb65e |