The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Ethernet is an evolving standard, not a static one. It's a family of frame-based networking technologies and communication services offering different communication capabilities and quality of service to distributed applications. Ethernet is becoming more present in critical embedded systems because of the supporting software and hardware ecosystem, and guaranteed growth path supported by different...
This paper presents a novel colored Petri net model for the simulation of fully-switched Ethernet based networked control systems (NCS). The model of the NCS is built from models of the automation system components (e.g. PLC, Ethernet Switch, IO Module) in a structure conserving way. CPNtools software is used to build and simulate the models. The proposed approach is used to study the overall response...
The paper presents a transaction-based task allocation model suitable for real-time distributed control applications. In accordance with the proposed model the autonomous functionalities of a control application are implemented as chains of tasks and messages, called transactions. This model allows the evaluation of worst case response time for transactions and subsequently determines the real-time...
Many real-time communication protocols have been studied to guarantee the communication requirements of distributed real-time systems. But, current techniques lack all or most of these requirements specially bounded message delivery time. In this paper we have proposed a Mac layer protocol called RDM+ with concepts similar to Round Data Mailer multi layer protocol. Our simulation results show that...
Video-streaming can now be offered on third-generation (3G) mobile networks. Most research efforts have focused on video download. This paper presents a detailed study of challenges faced for successfully deploying applications requiring life video upload. Both subjective and objective qualities as well as the effects of mobility are analyzed on real 3G networks. Consequently, video profiles are identified...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.