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Guaranteeing hard real-time traffic with legitimately short deadlines with the timed token protocol
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Wang, Jun, Zhang, Sijing, Maple, Carsten and Zhao, Zhengxu (2009) Guaranteeing hard real-time traffic with legitimately short deadlines with the timed token protocol. Computer Standards & Interfaces, 31 (3). pp. 557-565. doi:10.1016/j.csi.2008.03.019 ISSN 0920-5489.
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Official URL: http://dx.doi.org/10.1016/j.csi.2008.03.019
Abstract
Synchronous bandwidth, defined as the maximum time a node is allowed to send its synchronous messages while holding the token, is a sensitive parameter for deadline guarantees of synchronous messages in any timed token network. In order to offer such guarantees, synchronous bandwidth has to be allocated carefully to each individual node. This paper studies the synchronous bandwidth allocated to those synchronous message streams whose deadlines are less than twice the Target Token Rotation Time (TTRT). A new approach for allocating synchronous bandwidth to such streams, which can be used with any previously published local synchronous bandwidth allocation (SBA) for guaranteeing a general synchronous message set with its minimum deadline (Dmin) no less than 2 ยท TTRT, is proposed. The proposed scheme can be applied efficiently in practice to any general synchronous message set with Dmin > TTRT. Numerical examples are presented to demonstrate the enhanced performance of this new local scheme over any of the previously published local SBA schemes.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Computer Standards & Interfaces | ||||
Publisher: | Elsevier BV * North-Holland | ||||
ISSN: | 0920-5489 | ||||
Official Date: | March 2009 | ||||
Dates: |
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Volume: | 31 | ||||
Number: | 3 | ||||
Page Range: | pp. 557-565 | ||||
DOI: | 10.1016/j.csi.2008.03.019 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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