China
Africa
Explore chapters and articles related to this topic
Event-Triggered versus Time-Triggered Real-Time Systems: A Comparative Study
Published in Marek Miskowicz, Event-Based Control and Signal Processing, 2018
Roman Obermaisser, Walter Lang
The network delay denotes the time difference between the production of a message at a sending component and the reception of the last bit of the message at a receiving component. Depending on whether the communication protocol is time triggered or event triggered, the network delay exhibits different characteristics. In a time-triggered system, the send instants of all components are periodically recurring instants, which are globally planned in the system and defined with respect to the global time base. The network delay is independent of the traffic from other components and depends solely on the relationship between the transmission request instant of a message and the preplanned send instants according to the time-triggered schedule. Furthermore, since the next send instant of every component is known a priori, a component can synchronize locally the production of periodic messages with the send instant and thus minimize the network delay of a message.
Quality of Service in Switch/Routers
Published in James Aweya, Designing Switch/Routers, 2023
QoS in a packet network is not a specific algorithm or technique, but rather the application of a number of distinct, well-defined traffic control operations, on a network-wide basis to achieve a desired end-user service result. QoS comprises several technologies which help control bandwidth, network delay, delay variation, and packet loss in a network, and are mostly triggered when the network becomes overloaded or congested. Specifically, QoS is a distinct set of operations, which occur, in series, and may consist of traffic classifying, queuing, packet forwarding, metering, shaping, and re-tagging so that a desired set of behaviors can occur on a network-wide basis.
Concepts of Time-Triggered Communication
Published in Richard Zurawski, Industrial Communication Technology Handbook, 2017
The network delay denotes the time difference between the production of a message at a sending node and the reception of the last bit of the message at a receiving node. At some instant trequest, the sending node requests the transmission of a message by invoking a send operation at the node’s communication controller. Depending on the communication protocol and the current traffic on the communication channel, the transmission of the message will start after the access delay at the send instant.
Resisting bad mouth attack in vehicular platoon using node-centric weight-based trust management algorithm (NC-WTM)
Published in Connection Science, 2022
It is defined as the overall time occupied through data to move a platoon from the source vehicle to the destination vehicle. End-to-end network delay is caused by various factors, including transmission delay, propagation delay, processing delay, and queuing delay. For TCP connections, application relays can minimise end-to-end delays and enhance performance. Additional features, such as application relays, media transcoding, and mixers can be added to increase the performance of broadcasting between participants in the overlay.
A Fuzzy Based Routing Approach for Improving Online Conferencing Services in Software Defined Networking
Published in Cybernetics and Systems, 2023
Jianwen Cheng, Xiaoyan Zhu, Simin Abedi
E2E delay: Here, the E2E delay is calculated based on the Latency-Rate servers (LR-servers) model, which includes the data plane delay and the control plane delay. Eq. (1) formulates the E2E delay of the network for where and represent the network delay for data and control plane, respectively.