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This paper addresses the problem of how to estimate performance of distributed IEC 61499 automation systems and optionally, how to improve end-to-end response times in general. In order to make the process of distributed automation system design and deployment more streamlined, a software tool which could reliably estimate end-to-end response times within a system offline would be very beneficial...
Traditionally, service-specific network functions (NFs) (e.g., Firewall, intrusion detection system, etc.) are executed by installation-and maintenance-costly hardware middleboxes that are deployed within a datacenter network following a strictly ordered chain. NF virtualization (NFV) virtualizes these NFs and transforms them into instances of plain software referred to as virtual NFs (VNFs) and executed...
Communications Operations Procedure-1(COP-1) is widely used for reliable transmission of telecommand data for space missions. This paper focuses on the delay performance of COP-1 protocol over long and lossy link. The typical work conditions and process are studied combined with the characters of both the link and the transmission task. Based on the analysis of the procedure, the quantificational...
We daily add more devices and services into existing intelligent home networks. Consequently, various networking standards evolutions being experienced world over have not left home networks behind. These evolutions results in competition and depletion of the available limited resources. Consumers therefore, experience unavailable, unreliable and poor performing network both locally and remotely....
The NMOSFET-only pass gates used in some digital CMOS applications, such as the Field-Programmable Gate Arrays (FPGAs), are apparently vulnerable to Positive Bias Temperature Instability (PBTI). Here we discuss the impact of PBTI frequency and workload on high-k/metal-gate NMOSFETs in terms of Capture-and-Emission Time (CET) maps and quantitatively explain the degradation of our test circuit. From...
This paper introduces a fast analytical model for determining accurate parasitic values for best- and worst-case delays of a stage under interconnect process variations. The inputs to the model are the nominal values for each interconnect and device parameter and the amount of variation in each interconnect parameter. The outputs of the model are the interconnect parameter dimensions within the range...
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