Precise relative clock synchronization for distributed control using TSC registers

Tian, Guosong; Tian, Yu-Chu; Fidge, Colin

doi:10.1016/j.jnca.2014.04.013

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…Along with channel scheduling, various network applications also rely on time synchronization. In some network applications, network nodes only need relative time synchronization for ordering various network events [10]. In this case, the clocks of the nodes are synchronized with each other irrespective of the high accuracy of the synchronization.…”

Section: Significance and Requirements Of Time Synchronizationmentioning

confidence: 99%

GNSS Time Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility

Hasan

Feng

Tian

2018

IEEE Trans. Intell. Transport. Syst.

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Time synchronization is critical for the operation of distributed systems in networked environments. It is also demanded in vehicular ad-hoc networks (VANETs), which, as a special type of wireless networks, are becoming increasingly important for emerging cooperative intelligent transport systems. Global navigation satellite system (GNSS) is a proven technology to provide precise timing information in many distributed systems. It is well recognized to be the primary means for vehicle positioning and velocity determination in VANETs. However, GNSS-based time synchronization is not well understood for its role in the coordination of various tasks in VANETs. To address this issue, this paper examines the requirements, potential benefits, and feasibility of GNSS time synchronization in VANETs. The availability of GNSS time synchronization is characterized by almost 100% in our experiments in high-rise urban streets, where the availability of GNSS positioning solutions is only 80%. Experiments are also conducted to test the accuracy of time synchronization with 1-PPS signals output from consumergrade GNSS receivers. They have shown 30-ns synchronization accuracy between two receivers of different models. All these experimental results demonstrate the feasibility of GNSS time synchronization for stringent VANET applications.

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Section: Significance and Requirements Of Time Synchronizationmentioning

confidence: 99%

GNSS Time Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility

Hasan

Feng

Tian

2018

IEEE Trans. Intell. Transport. Syst.

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“…For instance, Network Time Protocol (NTP) is a low-cost solution whose accuracy ranges from hundreds of microseconds to several milliseconds ( [7]). The reference [8] presents a precise relative clock synchronization protocol for distributed applications. It achieves clock precision on the order of 10 microseconds in small-scale LANs and sub-millisecond over LANs.…”

Section: Clock Synchronizationmentioning

confidence: 99%

A Privacy Scheme for Monitoring Devices in the Internet of Things

Haas

Yousefpour²

2018

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Sufficiently strong security and privacy mechanisms are prerequisite to amass the promising benefits of the IoT technology and to incorporate this technology into our daily lives. This paper introduces a novel approach to privacy in networks, an approach which is especially well matched with the IoT characteristics. Our general approach is based on continually changing the identifying attributes of IoT nodes. In particular, the scheme proposed in this work is based on changing the IoT nodes' IP addresses, and because the changing patterns of the IP addresses appear random to a non-intended observer, an adversary is unable to identify the source or destination of a particular transmission. Thus, packets that carry information generated by a particular node cannot be linked together. The scheme offers additional security benefits, including DoS mitigation, is relatively easy to implement, and requires no changes to the existing networking infrastructure. We discuss the details of the implementation of the scheme and evaluate its performance.

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Time synchronization in vehicular ad-hoc networks: A survey on theory and practice

Hasan

Wang

Feng

et al. 2018

Vehicular Communications

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Precise relative clock synchronization for distributed control using TSC registers

Cited by 4 publications

References 40 publications

GNSS Time Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility

GNSS Time Synchronization in Vehicular Ad-Hoc Networks: Benefits and Feasibility

A Privacy Scheme for Monitoring Devices in the Internet of Things

Time synchronization in vehicular ad-hoc networks: A survey on theory and practice

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