Proceedings ArticleDOI
Master-less time synchronization for wireless sensor networks with generic topology
Daniele Fontanelli,David Macii +1 more
- pp 2785-2790
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TLDR
A consensus-based synchronization algorithm is used to compensate dynamically both time offsets and clock frequency skews, thus driving all WSN clocks towards a common time scale.Abstract:
Time synchronization in wireless sensor networks (WSN) is essential to schedule communication and distributed measurement tasks. In this paper a consensus-based synchronization algorithm is used to compensate dynamically both time offsets and clock frequency skews, thus driving all WSN clocks towards a common time scale. The proposed approach does not require either the election of a master node as a time reference for the whole network, or a specific synchronization protocol. Some simulation results show that the algorithm converges within a reasonable time, regardless of timestamping jitter, random communication latencies and incomplete node visibility.read more
Citations
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Journal ArticleDOI
System Support for the In Situ Testing of Wireless Sensor Networks via Programmable Virtual Onboard Sensors
TL;DR: The mechanism of programmable virtual onboard sensors, for letting sensor nodes produce artificial sensor values as dictated by the user, transparently to the application, is introduced.
Journal ArticleDOI
Performance Analysis of DTSA in Distributed Network
Vijay Masne,Urmila Shrawankar +1 more
TL;DR: Simulation results show that the DTSA reduces delay and achieve accuracy in scattered network, which synchronizes nodes in a network with Global Time Server (GTS) using NTP.
Book ChapterDOI
Distributed Time Management in Wireless Sensor Networks
TL;DR: In this article, the authors discuss requirements and practical limitations of time synchronization and present evaluation of sample algorithm, that can maintain the common clock between nodes of the WSN network that persists even in case of repeated node restarts, as long as network connectivity is maintained.
References
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Journal ArticleDOI
Consensus and Cooperation in Networked Multi-Agent Systems
TL;DR: A theoretical framework for analysis of consensus algorithms for multi-agent networked systems with an emphasis on the role of directed information flow, robustness to changes in network topology due to link/node failures, time-delays, and performance guarantees is provided.
Journal ArticleDOI
Fine-grained network time synchronization using reference broadcasts
TL;DR: Reference Broadcast Synchronization (RBS) as discussed by the authors is a scheme in which nodes send reference beacons to their neighbors using physical-layer broadcasts, and receivers use their arrival time as a point of reference for comparing their clocks.
Journal ArticleDOI
Packet Switching in Radio Channels: Part I--Carrier Sense Multiple-Access Modes and Their Throughput-Delay Characteristics
TL;DR: Two protocols are described for CSMA and their throughput-delay characteristics are given and results show the large advantage CSMA provides as compared to the random ALOHA access modes.
Proceedings ArticleDOI
The flooding time synchronization protocol
TL;DR: The FTSP achieves its robustness by utilizing periodic flooding of synchronization messages, and implicit dynamic topology update and comprehensive error compensation including clock skew estimation, which is markedly better than that of the existing RBS and TPSN algorithms.
Proceedings ArticleDOI
Timing-sync protocol for sensor networks
TL;DR: It is argued that TPSN roughly gives a 2x better performance as compared to Reference Broadcast Synchronization (RBS) and verify this by implementing RBS on motes and use simulations to verify its accuracy over large-scale networks.
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