Probability, random processes, and estimation theory for engineers
Probability, random processes, and estimation theory for engineers
Fundamentals of statistical signal processing: estimation theory
Fundamentals of statistical signal processing: estimation theory
An introduction to signal detection and estimation (2nd ed.)
An introduction to signal detection and estimation (2nd ed.)
On the interdependence of routing and data compression in multi-hop sensor networks
Proceedings of the 8th annual international conference on Mobile computing and networking
SNAP: A Sensor-Network Asynchronous Processor
ASYNC '03 Proceedings of the 9th International Symposium on Asynchronous Circuits and Systems
Fine-grained network time synchronization using reference broadcasts
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
The capacity of wireless networks
IEEE Transactions on Information Theory
A resource--efficient time estimation for wireless sensor networks
Proceedings of the 2004 joint workshop on Foundations of mobile computing
Decentralized synchronization protocols with nearest neighbor communication
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Fault-Tolerant Cluster-Wise Clock Synchronization for Wireless Sensor Networks
IEEE Transactions on Dependable and Secure Computing
Algorithmic aspects of the time synchronization problem in large-scale sensor networks
Mobile Networks and Applications
TinySeRSync: secure and resilient time synchronization in wireless sensor networks
Proceedings of the 13th ACM conference on Computer and communications security
A Cross-Layer Framework for Exploiting Virtual MISO Links in Mobile Ad Hoc Networks
IEEE Transactions on Mobile Computing
Scalable synchronization of clocks in wireless sensor networks
Ad Hoc Networks
Extension of pairwise broadcast clock synchronization for multicluster sensor networks
EURASIP Journal on Advances in Signal Processing
Opportunistic Clock Synchronization in a Beacon Enabled Wireless Sensor Network
ADHOC-NOW '08 Proceedings of the 7th international conference on Ad-hoc, Mobile and Wireless Networks
Estimating clock uncertainty for efficient duty-cycling in sensor networks
IEEE/ACM Transactions on Networking (TON)
A secure time synchronization protocol for sensor network
PAKDD'07 Proceedings of the 2007 international conference on Emerging technologies in knowledge discovery and data mining
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We consider the problem of synchronization of all clocks in a sensor network, in the regime of asymptotically high node densities. We formulate this problem as one in which all clocks must line up with the clock of an arbitrary node in the network (of course without assuming that this clock can be observed everywhere in the network, nor assuming that this node has any special hardware--this node could be any). We give a state-space description for the generation of observable data as a function of the ideal clock, and we derive an optimal estimator for determining the state of the ideal clock. A salient feature of our approach is that nodes collaborate to generate an aggregate waveform that can be observed simultaneously by all nodes, and that contains enough information to synchronize all clocks. This aggregate waveform effectively simulates the presence of a "super-node" capable of generating a high-power, network-wide time reference signal.