Absolute Time Synchronization Based on Timing Message Exchange in 5G Wireless Edge

In large scale of WSNs (wireless sensor networks), a centralized algorithm is not suitable for WSNs. Distributed algorithm has the obvious advantage over traditional time synchronization algorithm. The paper proposes a distributed time synchronization algorithm for WSNs, called SNOWBALL effect time synchronization. In the algorithm, a node needs only to communicate with its neighbor node, synchronizing itself clock based on the neighbor nodes information. The algorithm is a continuous synchronization process. The network will reach balance and clock consistency after repeated algorithm iterations. In the algorithm, we achieve network energy optimization by reducing unnecessary message exchange.

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Multiple Two-Way Time Message Exchange (TTME) Time Synchronization for Bridge Monitoring Wireless Sensor Networks

Sensors ◽

10.3390/s17051027 ◽

2017 ◽

Vol 17 (5) ◽

pp. 1027 ◽

Cited By ~ 10

Author(s):

Fanrong Shi ◽

Xianguo Tuo ◽

Simon Yang ◽

Huailiang Li ◽

Rui Shi

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Time Synchronization ◽

Wireless Sensor ◽

Bridge Monitoring ◽

Message Exchange

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Principles of JTIDS Relative Navigation

Journal of Navigation ◽

10.1017/s0373463300013060 ◽

1996 ◽

Vol 49 (1) ◽

pp. 22-35 ◽

Cited By ~ 4

Author(s):

J. F. O. Ranger

Keyword(s):

Time Synchronization ◽

Relative Navigation ◽

Data Link ◽

Operational Effectiveness ◽

Basic Principles ◽

Source Selection ◽

Navigation Function ◽

Message Exchange ◽

Tactical Data Link ◽

Definition Of

This paper describes one of the key features of the JTIDS/Link 16 tactical data-link, namely its relative navigation facility. A brief overview of the general features of the JTIDS system is given to provide the necessary background to the navigation aspects, and some mention is made of the message-exchange facilities. The main part of the paper describes how the JTIDS system provides the capability to perform accurate navigation, and discusses the basic principles of its operation. Some applications of the navigation function which enhance operational effectiveness are then described. The following topics are covered:(ii) JTIDS Architecture(i) Definition of JTIDS/Link 16(iii) Principles of Relative Navigation(iv) Source Selection(v) The Kalman Filter(vi) Time Synchronization(vii) The Use of Relative Navigation(viii) The Relative Grid

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Ultraprecise Absolute Time Synchronization for Distributed Acquisition Systems

IEEE Journal of Oceanic Engineering ◽

10.1109/joe.2007.906398 ◽

2007 ◽

Vol 32 (4) ◽

pp. 772-785 ◽

Cited By ~ 5

Author(s):

Brian R. Calder ◽

Andrew McLeod

Keyword(s):

Time Synchronization ◽

Absolute Time

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Multi-channel data acquisition system with absolute time synchronization

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/j.nima.2014.05.126 ◽

2014 ◽

Vol 763 ◽

pp. 150-154 ◽

Cited By ~ 14

Author(s):

Przemysław Włodarczyk ◽

Szymon Pustelny ◽

Dmitry Budker ◽

Marcin Lipiński

Keyword(s):

Data Acquisition ◽

Time Synchronization ◽

Data Acquisition System ◽

Acquisition System ◽

Absolute Time

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Synchronization-Free RadChat for Automotive Radar Interference Mitigation

Sustainability ◽

10.3390/su13126891 ◽

2021 ◽

Vol 13 (12) ◽

pp. 6891

Author(s):

Canan Aydogdu ◽

Henk Wymeersch ◽

Olof Eriksson ◽

Hans Herbertsson ◽

Mats Rydström

Keyword(s):

Interference Mitigation ◽

Time Synchronization ◽

Use Cases ◽

Automotive Radar ◽

Relative Time ◽

Short Intervals ◽

Absolute Time ◽

Simulation Results ◽

The Absolute ◽

Radar Sensing

Automotive radar interference mitigation is expected to be inherent in all future ADAS and AD vehicles. Joint radar communications is a candidate technology for removing this interference by coordinating radar sensing through communication. Coordination of radars requires strict time synchronization among vehicles, and our formerly proposed protocol (RadChat) achieves this by a precise absolute time, provided by GPS clocks of vehicles. However, interference might appear if synchronization among vehicles is lost in case GPS is spoofed, satellites are blocked over short intervals, or GPS is restarted/updated. Here we present a synchronization-free version of RadChat (Sync-free RadChat), which relies on using the relative time for radar coordination, eliminating the dependency on the absolute time provided by GPS. Simulation results obtained for various use cases show that Sync-free RadChat is able to mitigate interference without degrading the radar performance.

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