Journal ArticleDOI
Clock synchronization for wireless sensor networks: a survey
Bharath Sundararaman,Ugo Buy,Ajay D. Kshemkalyani +2 more
- Vol. 3, Iss: 3, pp 281-323
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TLDR
In this paper, a survey and evaluation of clock synchronization protocols based on a palette of factors such as precision, accuracy, cost, and complexity is presented, which can help developers either in choosing an existing synchronization protocol or in defining a new protocol that is best suited to the specific needs of a sensor network application.Abstract:
Recent advances in micro-electromechanical (MEMS) technology have led to the development of small, low-cost, and low-power sensors Wireless sensor networks (WSNs) are large-scale networks of such sensors, dedicated to observing and monitoring various aspects of the physical world In such networks, data from each sensor is agglomerated using data fusion to form a single meaningful result, which makes time synchronization between sensors highly desirable This paper surveys and evaluates existing clock synchronization protocols based on a palette of factors like precision, accuracy, cost, and complexity The design considerations presented here can help developers either in choosing an existing synchronization protocol or in defining a new protocol that is best suited to the specific needs of a sensor-network application Finally, the survey provides a valuable framework by which designers can compare new and existing synchronization protocolsread more
Citations
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Wireless sensor network survey
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Clock Synchronization of Wireless Sensor Networks
TL;DR: This article illustrates that many of the proposed clock synchronization protocols can be interpreted and their performance assessed using common statistical signal processing methods, and shows that advanced signal processing techniques enable the derivation of optimal clock synchronization algorithms under challenging scenarios.
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Programming wireless sensor networks: Fundamental concepts and state of the art
Luca Mottola,Gian Pietro Picco +1 more
TL;DR: This article presents a taxonomy of WSN programming approaches that captures the fundamental differences among existing solutions, and uses the taxonomy to provide an exhaustive classification of existing approaches.
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Distributed LMS for Consensus-Based In-Network Adaptive Processing
TL;DR: A fully distributed least mean-square algorithm is developed in this paper, offering simplicity and flexibility while solely requiring single-hop communications among sensors, and stability of the novel D-LMS algorithm is established to guarantee that local sensor estimation error norms remain bounded most of the time.
References
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Journal ArticleDOI
Wireless sensor networks: a survey
TL;DR: The concept of sensor networks which has been made viable by the convergence of micro-electro-mechanical systems technology, wireless communications and digital electronics is described.
Journal ArticleDOI
A survey on sensor networks
TL;DR: The current state of the art of sensor networks is captured in this article, where solutions are discussed under their related protocol stack layer sections.
Book ChapterDOI
Time, clocks, and the ordering of events in a distributed system
TL;DR: In this paper, the concept of one event happening before another in a distributed system is examined, and a distributed algorithm is given for synchronizing a system of logical clocks which can be used to totally order the events.
Journal ArticleDOI
Time, clocks, and the ordering of events in a distributed system
TL;DR: In this article, the concept of one event happening before another in a distributed system is examined, and a distributed algorithm is given for synchronizing a system of logical clocks which can be used to totally order the events.
Journal Article
An Energy-Efficient MAC Protocol for Wireless Sensor Networks
TL;DR: S-MAC as discussed by the authors is a medium access control protocol designed for wireless sensor networks, which uses three novel techniques to reduce energy consumption and support self-configuration, including virtual clusters to auto-sync on sleep schedules.