Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Place lab: device positioning using radio beacons in the wild
PERVASIVE'05 Proceedings of the Third international conference on Pervasive Computing
Army-Backed Flexible Display Effort: A Symbol of Public-Private Partnership
IEEE Pervasive Computing
Modular framework support for context-aware mobile cinema
Personal and Ubiquitous Computing - Special Issue: Implications of the socio-physical contexts when interacting with mobile media
Using actuated devices in location-aware systems
Proceedings of the 2nd international conference on Tangible and embedded interaction
From awareness to repartee: sharing location within social groups
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Interaction-aware energy management for wireless network cards
SIGMETRICS '08 Proceedings of the 2008 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Calibree: Calibration-Free Localization Using Relative Distance Estimations
Pervasive '08 Proceedings of the 6th International Conference on Pervasive Computing
Adaptive localization in a dynamic WiFi environment through multi-view learning
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
Using RESTful web-services and cloud computing to create next generation mobile applications
Proceedings of the 24th ACM SIGPLAN conference companion on Object oriented programming systems languages and applications
Bootstrapping a location service through geocoded postal addresses
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
A low cost positioning and visualization system using smartphones for emergency ambulance service
Proceedings of the 2010 ICSE Workshop on Software Engineering in Health Care
Inferring motion and location using WLAN RSSI
MELT'09 Proceedings of the 2nd international conference on Mobile entity localization and tracking in GPS-less environments
A long-duration study of user-trained 802.11 localization
MELT'09 Proceedings of the 2nd international conference on Mobile entity localization and tracking in GPS-less environments
Collaborative cellular-based location system
Euro-Par'10 Proceedings of the 16th international Euro-Par conference on Parallel processing: Part II
A location-based management system for enterprise wireless LANs
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
Interactive 3D modeling of indoor environments with a consumer depth camera
Proceedings of the 13th international conference on Ubiquitous computing
Pervasive and Mobile Computing
Risks of using AP locations discovered through war driving
PERVASIVE'06 Proceedings of the 4th international conference on Pervasive Computing
| Hi-index | 0.00 |
Location systems that are based on scanning for nearby radio sources can estimate the position of a mobile device with reasonable accuracy and high coverage. These systems require a calibration step in which a map is built from radio-readings taken on a location-aware device. War driving, for example, calibrates the positions of WiFi access points using a GPS-equipped laptop. In this paper we introduce an algorithm for self-mapping that minimizes or even eliminates explicit calibration by allowing the location system to build this radio map as the system is used. Using nearly 100 days of trace data, we evaluate self-mapping's accuracy when the map is seeded by three realistic data sources: public war-driving databases, WiFi hotspot finders, and sporadic GPS connectivity. On average, accuracy and coverage are shown to be comparable to those achieved with an explicit war-driven radio map.