Clock synchronization in distributed real-time systems
IEEE Transactions on Computers - Special Issue on Real-Time Systems
Time synchronization in ad hoc networks
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Probabilistic Clock Synchronization in Distributed Systems
IEEE Transactions on Parallel and Distributed Systems
Clock Synchronization in Wireless Distributed Embedded Applications
WSTFES '03 Proceedings of the IEEE Workshop on Software Technologies for Future Embedded Systems
Realization of a Distributed OS Component for Internal Clock Synchronization in a LAN Environment
ISORC '02 Proceedings of the Fifth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing
Lightweight time synchronization for sensor networks
WSNA '03 Proceedings of the 2nd ACM international conference on Wireless sensor networks and applications
Timing-sync protocol for sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
An adaptive energy-efficient MAC protocol for wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
TSync: a lightweight bidirectional time synchronization service for wireless sensor networks
ACM SIGMOBILE Mobile Computing and Communications Review - Special issue on wireless pan & sensor networks
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
Clock synchronization for wireless local area networks
Euromicro-RTS'00 Proceedings of the 12th Euromicro conference on Real-time systems
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In most sensor network applications, events are time stamped with node's local time. However, energy is highly constrained resource in sensor networks. The purpose of this paper is to present a timesynchronization algorithm for sensor networks that aims at reducing the computation and communication energy expended by the algorithm. We use MAC-layer time stamping and estimate the clock drift rate and the offset in order to obtain high precision performance. Our algorithm works in two steps. In the first step, a spanning tree is built in the sensor network. In the second step, all nodes in the network synchronize their clocks to their parent nodes. We analyze and implement our time synchronization algorithm on Berkeley MicaZ platform and show that it can synchronize a pair of neighboring motes to an average accuracy of around one microsecond with communication complexity of O(log n).