A transmission control scheme for media access in sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Timing-sync protocol for sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
The flooding time synchronization protocol
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Fine-grained network time synchronization using reference broadcasts
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Localization in Time and Space for Sensor Networks
AINA '07 Proceedings of the 21st International Conference on Advanced Networking and Applications
Clock estimation for long-term synchronization in wireless sensor networks with exponential delays
EURASIP Journal on Advances in Signal Processing
On the Multihop Performance of Synchronization Mechanisms in High Propagation Delay Networks
IEEE Transactions on Computers
Tight bounds for clock synchronization
Proceedings of the 28th ACM symposium on Principles of distributed computing
Optimal clock synchronization in networks
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
Towards a unified view on space and time in sensor networks
Computer Communications
Accurate clock models for simulating Wireless Sensor Networks
Proceedings of the 3rd International ICST Conference on Simulation Tools and Techniques
Time synchronization in sensor networks: a survey
IEEE Network: The Magazine of Global Internetworking
An accurate on-demand time synchronization protocol for wireless sensor networks
Journal of Parallel and Distributed Computing
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Time synchronization is very important in wireless sensor networks (WSNs). Many applications, for example natural disaster monitoring and structural health monitoring of huge buildings, require a highly accurate, long-term and large-scale time synchronization among the sensor nodes that compose the network. In this paper, we propose a new time synchronization protocol, named 2LTSP (long term and large scale time synchronization protocol), which aims at addressing such requirements. Theoretical analysis and simulation results show that when the synchronization period is less than 100s, the error of 2LTSP is within 0.6ms, no matter how large the size of the network is. Besides, when the required synchronization error limit is 9ms, the communication cost of 2LTSP is less than 3 packets per hour in networks of any size. Therefore, 2LTSP is highly accurate and energy-efficient even for large-scale and long-term running networks.