The active badge location system
ACM Transactions on Information Systems (TOIS)
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Dynamic fine-grained localization in Ad-Hoc networks of sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Introduction to Robotics: Mechanics and Control
Introduction to Robotics: Mechanics and Control
Navigating Mobile Robots: Systems and Techniques
Navigating Mobile Robots: Systems and Techniques
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Visual Contextual Awareness in Wearable Computing
ISWC '98 Proceedings of the 2nd IEEE International Symposium on Wearable Computers
Practical robust localization over large-scale 802.11 wireless networks
Proceedings of the 10th annual international conference on Mobile computing and networking
Accuracy characterization for metropolitan-scale Wi-Fi localization
Proceedings of the 3rd international conference on Mobile systems, applications, and services
ARIADNE: a dynamic indoor signal map construction and localization system
Proceedings of the 4th international conference on Mobile systems, applications and services
PinPoint: An Asynchronous Time-Based Location Determination System
Proceedings of the 4th international conference on Mobile systems, applications and services
Practical network-based techniques for mobile positioning in UMTS
EURASIP Journal on Applied Signal Processing
Real-time implementation of a GIS-based localization system for intelligent vehicles
EURASIP Journal on Embedded Systems
Place lab: device positioning using radio beacons in the wild
PERVASIVE'05 Proceedings of the Third international conference on Pervasive Computing
Practical metropolitan-scale positioning for GSM phones
UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
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Location and mobility management are critical issues for the growing worldwide market in location based services (LBS). Existing research generally requires either special hardware to measure time (thus the distance) and angle or manually constructing database maps using one or a combination of techniques such as lateration, triangulation, database mapping or dead reckoning. In contrast, pathways that uniquely exploit sharing spaces among collaborating objects for the purpose of navigation are far less studied. This paper first analyzes the FreeMobility, a simpler but effective location determination technique, that exploits wireless communications abilities under a broad environmental context; then detailed comparison with database mapping based methods is conducted using measurement data from both GSM and Wi-Fi networks. Results indicate that the adoption of environmental constraints will transform wireless localization research from straightforward hardware dominated approaches to a more independent system approach and thus it opens a new window of opportunity valuable to the research community.