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Lineintegration
Published in We-Min Chow, Assembly Line Design, 2020
A manufacturing information system may consist of a standalone computer or a network of computers. In addition, a number of input/output peripheral devices are usually needed for data entry, information display, and documentation. In modern manufacturing systems, personal computers and local area networks have become increasingly popular. Due to their low cost and high computing power, personal computers have been used for providing manufacturing instructions to operators, testing function support, tooling or material-handling system control, data collection, and line monitoring. A personal computer may also serve as an interface between a workstation and the rest of the assembly line. Communication among these computers is through a local area network. Network performance behavior is a function of transaction rate, data volume, data transmission speed on the network, and protocol. Performance analysis of local area networks is given in Bux (1981).
Wireless Infrared Networking
Published in Roberto Ramirez-Iniguez, Sevia M. Idrus, Ziran Sun, Optical Wireless Communications, 2008
Roberto Ramirez-Iniguez, Sevia M. Idrus, Ziran Sun
Quality-of-Service (QoS) is a measure of network performance that reflects the network’s transmission quality and service availability. It can come in different forms to guarantee the performance of network flow in terms of delay, jitter, bandwidth, packet loss probability, error rate, and other characteristics. To ensure QoS, these measuring characteristics must be improved, and to some extent, guaranteed in advance. QoS provision in wireless communication is a well-known problem due to the poor quality, the limited bandwidth, and the highly dynamically changing network topology of the links. Recently, the rising popularity of multimedia streaming applications, the continuous transmission of high-bandwidth video, and many other potential commercial applications are demanding that more effort be put on QoS support in wireless networks.
A metric for measuring power efficiency and data throughput in mobile ad hoc networks
Published in International Journal of Parallel, Emergent and Distributed Systems, 2019
Todd A. Newton, Eugene B. John
Network performance is generally thought about in terms of throughput and latency characteristics. However, when considering MANETs and WSNs, the lifetime of the network is also a key network performance metric. Network lifetime is an indirect means to gauge the power efficiency of the network. Though there are many factors that affect a node’s power consumption rate, one factor that is not so obvious is the underlying routing protocol used for establishing and maintaining connectivity across the network. Some routing protocols perform better than others in mobile environments. Some perform worse as the network density increases. Whichever routing protocol is chosen, there is a cost associated with it. The more packets transmitted for route establishment and maintenance, the more power is consumed to transmit these overhead data packets.