Proceedings ArticleDOI
Towards master-less wsn clock synchronization with a light communication protocol
Daniele Fontanelli,David Macii +1 more
- pp 105-110
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TLDR
A new synchronization procedure based on a distributed Proportional Integral (PI) consensus controller is described, designed to avoid the election of any fixed time reference node, thus potentially improving the robustness of the whole synchronization procedure.Abstract:
Time synchronization of Wireless Sensor Network (WSN) nodes is essential in those applications requiring distributed task scheduling or data aggregation and fusion. In this paper, a new synchronization procedure based on a distributed Proportional Integral (PI) consensus controller is described. Compared to other similar solutions, the proposed approach keeps into account the effect of random communication and processing delays and it is expected to have lower communication overhead. Also, it is designed to avoid the election of any fixed time reference node, thus potentially improving the robustness of the whole synchronization procedure. Some simulation results show that the procedure works correctly even in different network traffic conditions.read more
Citations
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Journal ArticleDOI
Time Synchronization in WSNs: A Maximum-Value-Based Consensus Approach
TL;DR: The weighted maximum time synchronization (WMTS), which is able to counteract the impact of random communication delays, is proposed, which can synchronize the clock skew completely in expectation and achieve acceptable synchronization accuracy.
Journal ArticleDOI
A model for the classification and survey of clock synchronization protocols in WSNs
TL;DR: This survey paper categorizes the features of clock synchronization protocols for WSNs into three types, viz. structural features, technical features, and global objective features, which are required for better understanding of the Clock synchronization protocols in WSN's in a systematic way.
Proceedings ArticleDOI
A Trustful Infrastructure for the Internet of Things Based on EPOSMote
TL;DR: The design, implementation and evaluation of a trustful infrastructure for the Internet of Things (IoT) based on EPOS Mote is described, which features an ARM processor and an IEEE 802.15.4 radio transceiver.
Proceedings ArticleDOI
Master-less time synchronization for wireless sensor networks with generic topology
Daniele Fontanelli,David Macii +1 more
TL;DR: 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.
Uma Proposta de framework para a geração de protocolos MAC para RSSF
TL;DR: This dissertation presents the proposal, implementation, and evaluation of a new architecture for the framework C-MAC, enabling a greater reuse of its software components, providing greater configurability and, consequently, supporting a wider range of applications.
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
Coordination of groups of mobile autonomous agents using nearest neighbor rules
Ali Jadbabaie,Jie Lin,A.S. Morse +2 more
TL;DR: A theoretical explanation for the observed behavior of the Vicsek model, which proves to be a graphic example of a switched linear system which is stable, but for which there does not exist a common quadratic Lyapunov function.
Journal ArticleDOI
Consensus seeking in multiagent systems under dynamically changing interaction topologies
Wei Ren,Randal W. Beard +1 more
TL;DR: It is shown that information consensus under dynamically changing interaction topologies can be achieved asymptotically if the union of the directed interaction graphs have a spanning tree frequently enough as the system evolves.
Journal ArticleDOI
Randomized gossip algorithms
TL;DR: This work analyzes the averaging problem under the gossip constraint for an arbitrary network graph, and finds that the averaging time of a gossip algorithm depends on the second largest eigenvalue of a doubly stochastic matrix characterizing the algorithm.
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.
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