Schedulability Analysis for the Dynamic Segment of FlexRay: A Generalization to Slot Multiplexing
Real-Time and Embedded Technology and Applications Symposium (RTAS 2012), Beijing, China, April 16-19, 2012.
ABSTRACT
FlexRay, developed by a consortium of over hundred automotive companies, is a real-time communication protocol for automotive networks. In this paper, we propose a new approach for timing analysis of the event-triggered component of FlexRay, known as the dynamic segment. Our technique accounts for the fact that the FlexRay standard allows slot multiplexing, i.e., the same priority can be assigned to more than one message. Existing techniques have either ignored slot multiplexing in their analysis or made simplifying assumptions that severely limit achieving high bandwidth utilization. Moreover, we show that our technique returns less pessimistic results compared to previously known techniques even in the case where slot multiplexing is ignored.
[TDKE12] Bogdan Tanasa, Unmesh D. Bordoloi, Stefanie Kosuch, Petru Eles, Zebo Peng, "Schedulability Analysis for the Dynamic Segment of FlexRay: A Generalization to Slot Multiplexing", Real-Time and Embedded Technology and Applications Symposium (RTAS 2012), Beijing, China, April 16-19, 2012. |
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