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Controller Area Network (CAN), a typical event- triggered protocol, has been widely used in constructing distributed real time network. A common opinion is that the arbitration mechanism of CAN might introduce jitters, which is highly undesirable in time and safety critical applications. Time-triggered protocols address exactly the problem. Time- triggered protocols, such as Flexray, Time-Triggered...
In this paper, a feedback algorithm based on the constant bandwidth server (CBS) is designed to support and meet the quality of service requirements of soft real-time tasks in vehicular application specific embedded operating systems (vASOS). Moreover, it realizes the temporal isolation of hard and soft real-time tasks and guarantees the reliability and safety of vehicles in vASOS. A proportional...
In wireless mobile environments, data broadcasting is an effective approach to disseminate information to mobile clients. In some applications, the access pattern of all the data to be downloaded can be represented by a DAG. In this paper, we consider the problem of efficiently generating the broadcast schedule on multiple channels when the data set has a DAG access pattern. We prove that it is NP-hard...
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