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Providing generalized rate monotonic scheduling theory to I/O abstractions over timed token protocol MAC networks

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3 Author(s)
Echague, J. ; Departamento de Inf., Univ. Jaume I, Castellon, Spain ; Vila, J. ; Crespo, A.

This paper presents a high-level abstraction for remote communication which allows to establish connections with real-time requirements. The approach is based on the idea of structuring applications as modules with a set of external visible data structures which act as I/O ports. Parts can be interconnected using real-time connections. This interconnection is done in a configuration phase and it allows to integrate modules or applications dynamically. Real-time connections produce streams of messages with time constraints. Messages are scheduled by means of a priority model where priorities are assigned following generalized rate monotonic scheduling (GRMS) theory. The proposed system is built over a network with the timed token protocol (TTP) medium access control (MAC). A discussion on how to provide GRMS abstractions over TTP is given. Comparison results between current scheduling algorithms and the proposed model are also provided

Published in:

Engineering of Complex Computer Systems, 1996. Proceedings., Second IEEE International Conference on

Date of Conference:

21-25 Oct 1996