Clock synchronization in distributed real-time systems
IEEE Transactions on Computers - Special Issue on Real-Time Systems
Interval-based Clock Synchronization
Real-Time Systems - Special issue on global time in large scale distributed real-time systems, part II
Time, clocks, and the ordering of events in a distributed system
Communications of the ACM
Time synchronization in ad hoc networks
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Real-Time Systems: Design Principles for Distributed Embedded Applications
Real-Time Systems: Design Principles for Distributed Embedded Applications
Maintaining the time in a distributed system
PODC '83 Proceedings of the second annual ACM symposium on Principles of 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
Time synchronization in wireless sensor networks
Time synchronization in wireless sensor networks
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
Improved interval-based clock synchronization in sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
Internal synchronization of drift-constraint clocks in ad-hoc sensor networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
A wireless sensor network For structural monitoring
SenSys '04 Proceedings of the 2nd 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
Directed flood-routing framework for wireless sensor networks
Proceedings of the 5th ACM/IFIP/USENIX international conference on Middleware
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
Time-diffusion synchronization protocol for wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Multiple simultaneous acoustic source localization in urban terrain
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Time synchronization in sensor networks: a survey
IEEE Network: The Magazine of Global Internetworking
Countersniper system for urban warfare
ACM Transactions on Sensor Networks (TOSN)
System software techniques for low-power operation in wireless sensor networks
ICCAD '05 Proceedings of the 2005 IEEE/ACM International conference on Computer-aided design
Radio interferometric tracking of mobile wireless nodes
Proceedings of the 5th international conference on Mobile systems, applications and services
Towards a sensor network architecture: lowering the waistline
HOTOS'05 Proceedings of the 10th conference on Hot Topics in Operating Systems - Volume 10
MSP: multi-sequence positioning of wireless sensor nodes
Proceedings of the 5th international conference on Embedded networked sensor systems
Tracking mobile nodes using RF Doppler shifts
Proceedings of the 5th international conference on Embedded networked sensor systems
Y-MAC: An Energy-Efficient Multi-channel MAC Protocol for Dense Wireless Sensor Networks
IPSN '08 Proceedings of the 7th international conference on Information processing in sensor networks
Mobile sensor localization and navigation using RF doppler shifts
Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments
Time Synchronization in Heterogeneous Sensor Networks
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
Acoustic Sensor Network-Based Parking Lot Surveillance System
EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
Predictive QoS routing to mobile sinks in wireless sensor networks
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
A tale of two synchronizing clocks
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
InTrack: high precision tracking of mobile sensor nodes
EWSN'07 Proceedings of the 4th European conference on Wireless sensor networks
Protocols for traffic safety using wireless sensor network
ICA3PP'07 Proceedings of the 7th international conference on Algorithms and architectures for parallel processing
High-resolution, low-power time synchronization an oxymoron no more
Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks
RF doppler shift-based mobile sensor tracking and navigation
ACM Transactions on Sensor Networks (TOSN)
A survey on localization for mobile wireless sensor networks
MELT'09 Proceedings of the 2nd international conference on Mobile entity localization and tracking in GPS-less environments
A case against routing-integrated time synchronization
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Clock synchronization with deterministic accuracy guarantee
EWSN'11 Proceedings of the 8th European conference on Wireless sensor networks
RF angle of arrival-based node localisation
International Journal of Sensor Networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Cross-layer routing and time synchronisation in wireless sensor networks
International Journal of Sensor Networks
A new real-time location tracking techniques using Doppler radar and bio-sensors in WSN
Proceedings of the 2011 ACM Symposium on Research in Applied Computation
Radio interferometric angle of arrival estimation
EWSN'10 Proceedings of the 7th European conference on Wireless Sensor Networks
Wireless sensor node localization by multisequence processing
ACM Transactions on Embedded Computing Systems (TECS)
On the scalability of routing integrated time synchronization
EWSN'06 Proceedings of the Third European conference on Wireless Sensor Networks
A sensor network-based multiple acoustic source localization algorithm
Proceedings of the 27th Annual ACM Symposium on Applied Computing
An accurate on-demand time synchronization protocol for wireless sensor networks
Journal of Parallel and Distributed Computing
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
Proceedings of the Twenty-Fourth ACM Symposium on Operating Systems Principles
ACM SIGOPS 24th Symposium on Operating Systems Principles
Timecard: controlling user-perceived delays in server-based mobile applications
Proceedings of the Twenty-Fourth ACM Symposium on Operating Systems Principles
A predictive duty cycle adaptation framework using augmented sensing for wireless camera networks
ACM Transactions on Sensor Networks (TOSN)
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Time synchronisation is one of the most important and fundamental middleware services for wireless sensor networks. However, there is an apparent disconnect between existing time synchronisation implementations and the actual needs of current typical sensor network applications. To address this problem, we formulate a set of canonical time synchronisation services distilled from actual applications and propose a set of general application programming interfaces for providing them. We argue that these services can be implemented using a simple time-stamping primitive called Elapsed Time on Arrival (ETA) and we provide two such implementations. The Routing Integrated Time Synchronisation (RITS) is an extension of ETA over multiple hops. It is a reactive time synchronisation protocol that can be used to correlate multiple event detections at one or more locations to within microseconds. Rapid Time Synchronisation (RATS) is a proactive timesync protocol that utilises RITS to achieve network-wide synchronisation with microsecond precision and rapid convergence. Our work demonstrates that it is possible to build high-performance timesync services using the simple ETA primitive and suggests that more complex mechanisms may be unnecessary to meet the needs of many real world sensor network applications.