Node density independent localization
Proceedings of the 5th international conference on Information processing in sensor networks
Localization in underwater sensor networks: survey and challenges
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
The design and implementation of a self-calibrating distributed acoustic sensing platform
Proceedings of the 4th international conference on Embedded networked sensor systems
Thunder: towards practical, zero cost acoustic localization for outdoor wireless sensor networks
ACM SIGMOBILE Mobile Computing and Communications Review
Acoustic laptops as a research enabler
Proceedings of the 4th workshop on Embedded networked sensors
Towards a flexible global sensing infrastructure
ACM SIGBED Review - Special issue on the workshop on wireless sensor network architecture (April-2007)
A framework for assessing residual energy in wireless sensor network
International Journal of Sensor Networks
Passive Localization: Large Size Sensor Network Localization Based on Environmental Events
IPSN '08 Proceedings of the 7th international conference on Information processing in sensor networks
Localization using signal strength: to range or not to range?
Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments
Weighted MDS for Sensor Localization
ICCSA '08 Proceedings of the international conference on Computational Science and Its Applications, Part II
Route in Mobile WSN and Get Self-deployment for Free
DCOSS '09 Proceedings of the 5th IEEE International Conference on Distributed Computing in Sensor Systems
Resilient localization for sensor networks in outdoor environments
ACM Transactions on Sensor Networks (TOSN)
EURASIP Journal on Advances in Signal Processing - Special issue on advances in signal processing for maritime applications
Localization in wireless sensor networks with known coordinate database
EURASIP Journal on Wireless Communications and Networking - Special issue on signal processing-assisted protocols and algorithms for cooperating objects and wireless sensor networks
TWEET: an envelope detection based broadband ultrasonic ranging system
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
DCOSS'06 Proceedings of the Second IEEE international conference on Distributed Computing in Sensor Systems
Splitting the linear least squares problem for precise localization in geosensor networks
GIScience'06 Proceedings of the 4th international conference on Geographic Information Science
Fuzzy ring-overlapping range-free (FRORF) localization method for wireless sensor networks
Computer Communications
Understanding the limits of RF-based collaborative localization
IEEE/ACM Transactions on Networking (TON)
Acoustical ranging techniques in embedded wireless sensor networked devices
ACM Transactions on Sensor Networks (TOSN)
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The process of computing the physical locations of nodes in a wireless sensor network is known as localization. Self-localization is critical for large-scale sensor networks because manual or assisted localization is often impractical due to time requirements, economic constraints or inherent limitations of deployment scenarios. We have developed a service for reliably localizing wireless sensor networks in environments conducive to ranging errors by using a custom hardware-software solution for acoustic ranging and a family of self-localization algorithms. The ranging solution improves on previous work, extending the practical measurement range threefold (20-30m) while maintaining a distance-invariant median measurement error of about 1% of maximum range (33cm). The localization scheme is based on least squares scaling with soft constraints. Evaluation using ranging results obtained from sensor network field experiments shows that the localization scheme is resilient against large-magnitude ranging errors and sparse range measurements, both of which are common in large-scale outdoor sensor network deployments.