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The IEEE 1588 standard is widely established and accepted for clock synchronization in Ethernet networks. High accuracy IEEE 1588 implementations require a well-coordinated hardware/software co-design. Processing of sophisticated control algorithms for the time speed of local clocks within synchronization slaves are particularly important. Hence, IEEE 1588 implementations should be tested with respect...
Nowadays the IEEE1588 synchronization protocol has been adopted in a growing number of fields, from automation to telecommunication systems. Usually, the quality of the services provided by these applications requires an accurate and reliable time synchronization. Several solutions have been already proposed to achieve these goals. However, the statistical instruments provided in the standard (PTP...
Some of the key infrastructure requirements for Smart Grid are the uninterrupted and reliable distribution of network data, information security and distribution of time information among network elements in order to accurately timestamp and correlate different network events. High Availability Seamless Ring (HSR) enabled networks can provide zero recovery time and PTPv2 enabled network can provide...
Using IEEE 1588 for highly accurate clock synchronization between nodes of a distributed system has become a widely accepted approach. IEEE 802.3/Ethernet is frequently utilized as communication layer to exchange the Precision Time Protocol (PTP) messages specified in the IEEE 1588 standard. 10/100/1000 MBit Ethernet communication is commonly used by now. In contrast, fiber optics based 10 GBit Ethernet...
Precision Time Protocol (PTP) is a high precision time synchronization protocol designed to run over a local area network. PTP, often referred to as 1588, is defined by the IEEE Standard 1588™-2008. The protocol theoretically allows synchronization at the nanosecond level. In this project we study the performance of the protocol in an environment where multiple 1588 devices are connected via a network...
In distributed environments, the coordination of distributed entities and events requires time synchronization. Precision time synchronization supports a variety of extensions of applications. The IEEE 1588 precision time protocol (PTP) provides a standard method to synchronize devices in a network with sub-microsecond precision. This paper includes the design and implementation of a PTP bridge to...
Clock synchronization in distributed networks is one of the most crucial and fundamental issues. Inaccurate factors in synchronizing clocks between nodes in the network can occur at any point in the network layers. The most uncertainties caused at upper layers can be eliminated by hardware assisted time stamping. However, eliminating the uncertainty of a physical layer is difficult. This paper introduces...
Synchronization is one of the problems in the auto-test network system. Based on the architecture and character of auto-test network system, this paper analyzes the three synchronization techniques: IEEE 1588, NTP and GPS. We also summarize the character of each technique. Using the result may give help for choosing synchronization technique for practical system.
Broadcasting of digital video signals uses large spectral area. In order to reduce the cost, broadcasters are optimizing their radio network. They build single frequency network (SFN). To maintain efficient quality of service (QoS) to the end user, accurate time synchronization and frequency syntonization is needed between transmitter sites. This function is now fulfilled with local GPS slaved clocks...
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