Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/5575
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Computing | - |
dc.creator | Wang, Q | - |
dc.creator | Gopalakrishnan, S | - |
dc.date.accessioned | 2014-12-11T08:23:16Z | - |
dc.date.available | 2014-12-11T08:23:16Z | - |
dc.identifier.issn | 1551-3203 | - |
dc.identifier.uri | http://hdl.handle.net/10397/5575 | - |
dc.language.iso | en | en_US |
dc.publisher | Institute of Electrical and Electronics Engineers | en_US |
dc.rights | © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en_US |
dc.rights | The following publication Wang, Q., & Gopalakrishnan, S. (2010). Adapting a main-stream internet switch architecture for multihop real-time industrial networks. IEEE Transactions on Industrial Informatics, 6(3), 393-404 is available at http://dx.doi.org/10.1109/TII.2010.2051557 | en_US |
dc.subject | Cyber-physical systems (CPSs) | en_US |
dc.subject | Industrial control | en_US |
dc.subject | Real-time | en_US |
dc.subject | Switch | en_US |
dc.title | Adapting a main-stream internet switch architecture for multihop real-time industrial networks | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 393 | - |
dc.identifier.epage | 404 | - |
dc.identifier.volume | 6 | - |
dc.identifier.issue | 3 | - |
dc.identifier.doi | 10.1109/TII.2010.2051557 | - |
dcterms.abstract | As real-time industrial control systems scale up, single real-time local area network (LAN) is no longer sufficient; instead, we need real-time switches to merge many real-time LANs into real-time wide area networks (WANs). However, nowadays commercially-off-the-shelf WAN switches are designed for best-effort Internet traffic rather than real-time traffic. To address this problem, we propose a real-time crossbar switch design that minimally modifies, and even simplifies the de facto industrial standard switch design of iSLIP. Specifically, we change the iSLIP request-grant-accept negotiation to deterministic grant. The switch runs periodically with an M cell-time clock-period. Every input port runs per-flow queueing, and every output port deterministically grants input port per-flow queues according to its own M cell-time clock-period schedule. The schedules are created offline. We prove that the global scheduling can be reduced to a preemptive open shop scheduling problem; as long as every input/output needs to send/fetch no more than M cells per M cell-time clock-period, all outputs schedules do not conflict; and the scheduling algorithm takes O(N4) time (N is the number of input/output ports). Such design serves real-time periodic/aperiodic traffic in a time-division multiple-access (TDMA) fashion. This simplifies analysis, provides isolation, and results in a close-form end-to-end delay bound. We implemented the proposed real-time switch using Xilinx field programmable gate arrays (FPGAs), and built a distributed control test bed upon the switched networks. Using the test bed, we carried out experiments to compare the implemented real-time switches and iSLIP switches. The results prove the necessity of using real-time switches for real-time industrial control. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | IEEE transactions on industrial informatics, Aug. 2010, v. 6, no. 3, p. 393-404 | - |
dcterms.isPartOf | IEEE transactions on industrial informatics | - |
dcterms.issued | 2010-08 | - |
dc.identifier.isi | WOS:000284008200014 | - |
dc.identifier.scopus | 2-s2.0-77955717283 | - |
dc.identifier.eissn | 1941-0050 | - |
dc.identifier.rosgroupid | r47376 | - |
dc.description.ros | 2009-2010 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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TII2010.pdf | Pre-published version | 1.4 MB | Adobe PDF | View/Open |
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