The active badge location system
ACM Transactions on Information Systems (TOIS)
Cyberguide: a mobile context-aware tour guide
Wireless Networks - Special issue: mobile computing and networking: selected papers from MobiCom '96
The interactive museum tour-guide robot
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
Integrating topological and metroc maps for mobile robot navigation: a statistical approach
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
A Probabilistic Approach to Concurrent Mapping and Localization for Mobile Robots
Machine Learning - Special issue on learning in autonomous robots
Monte Carlo localization: efficient position estimation for mobile robots
AAAI '99/IAAI '99 Proceedings of the sixteenth national conference on Artificial intelligence and the eleventh Innovative applications of artificial intelligence conference innovative applications of artificial intelligence
Computational principles of mobile robotics
Computational principles of mobile robotics
Wireless integrated network sensors
Communications of the ACM
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
System architecture directions for networked sensors
ASPLOS IX Proceedings of the ninth international conference on Architectural support for programming languages and operating systems
Robust Monte Carlo localization for mobile robots
Artificial Intelligence
The cricket compass for context-aware mobile applications
Proceedings of the 7th 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
Robotics-based location sensing using wireless ethernet
Proceedings of the 8th annual international conference on Mobile computing and networking
comMotion: a context-aware communication system
CHI '99 Extended Abstracts on Human Factors in Computing Systems
A Probabilistic Room Location Service for Wireless Networked Environments
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
WLAN Location Determination via Clustering and Probability Distributions
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
Multi-Camera Multi-Person Tracking for EasyLiving
VS '00 Proceedings of the Third IEEE International Workshop on Visual Surveillance (VS'2000)
A Survey of Context-Aware Mobile Computing Research
A Survey of Context-Aware Mobile Computing Research
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Wireless LAN location-sensing for security applications
WiSe '03 Proceedings of the 2nd ACM workshop on Wireless security
Towards a general theory of topological maps
Artificial Intelligence
Localization for mobile sensor networks
Proceedings of the 10th annual international conference on Mobile computing and networking
Organizing a global coordinate system from local information on an ad hoc sensor network
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Integrating grid-based and topological maps for mobile robot navigation
AAAI'96 Proceedings of the thirteenth national conference on Artificial intelligence - Volume 2
Mobility modeling, location tracking, and trajectory prediction in wireless ATM networks
IEEE Journal on Selected Areas in Communications
The Horus WLAN location determination system
Proceedings of the 3rd international conference on Mobile systems, applications, and services
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
IEEE Transactions on Knowledge and Data Engineering
Robotics-based location sensing using wireless Ethernet
Wireless Networks
Localization in sparse networks using sweeps
Proceedings of the 12th annual international conference on Mobile computing and networking
Detecting identity-based attacks in wireless networks using signalprints
WiSe '06 Proceedings of the 5th ACM workshop on Wireless security
Kernel-Based Positioning in Wireless Local Area Networks
IEEE Transactions on Mobile Computing
Loc{lib,trace,eva,ana}: research tools for 802.11-based positioning systems
Proceedings of the second ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Using visualization to locate rogue access points
Journal of Computing Sciences in Colleges - Papers of the Fourteenth Annual CCSC Midwestern Conference and Papers of the Sixteenth Annual CCSC Rocky Mountain Conference
Pervasive and Mobile Computing
Information Sciences: an International Journal
Securing Wi-Fi networks with position verification: extended version
International Journal of Security and Networks
Automatic identification of informal social groups and places for geo-social recommendations
International Journal of Mobile Network Design and Innovation
International Journal of Mobile Communications
Efficient indoor proximity and separation detection for location fingerprinting
Proceedings of the 1st international conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications
Supporting vehicular mobility in urban multi-hop wireless networks
Proceedings of the 6th international conference on Mobile systems, applications, and services
Composcan: adaptive scanning for efficient concurrent communications and positioning with 802.11
Proceedings of the 6th international conference on Mobile systems, applications, and services
Activity recognition via user-trace segmentation
ACM Transactions on Sensor Networks (TOSN)
Continuous camera-based monitoring for assistive environments
Proceedings of the 1st international conference on PErvasive Technologies Related to Assistive Environments
SOLONet: sub-optimal location-aided overlay network
Wireless Networks
The Horus location determination system
Wireless Networks
CILoS: a CDMA indoor localization system
UbiComp '08 Proceedings of the 10th international conference on Ubiquitous computing
BreadCrumbs: forecasting mobile connectivity
Proceedings of the 14th ACM international conference on Mobile computing and networking
Indoor localization based on response rate of bluetooth inquiries
Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments
Redpin - adaptive, zero-configuration indoor localization through user collaboration
Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments
Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments
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
Location-based trust for mobile user-generated content: applications, challenges and implementations
Proceedings of the 9th workshop on Mobile computing systems and applications
Leveraging GIS Technologies for Web-Based Smart Places Services
SEUS '08 Proceedings of the 6th IFIP WG 10.2 international workshop on Software Technologies for Embedded and Ubiquitous Systems
A practical implementation of indoor location-based services using simple WiFi positioning
Journal of Location Based Services
A stroll with Carletto: adaptation in drama-based tours with virtual characters
User Modeling and User-Adapted Interaction
GammaSense: Infrastructureless Positioning Using Background Radioactivity
EuroSSC '08 Proceedings of the 3rd European Conference on Smart Sensing and Context
Proximity-based authentication of mobile devices
International Journal of Security and Networks
WBLS: A signal presence-based Wi-Fi localisation system for mobile devices in smart environments
International Journal of Knowledge-based and Intelligent Engineering Systems - Intelligent agents and services for smart environments
Constructing accurate, space-efficient, wireless coverage maps for vehicular contexts
Proceedings of the 4th Annual International Conference on Wireless Internet
RF-Based Initialisation for Inertial Pedestrian Tracking
Pervasive '09 Proceedings of the 7th International Conference on Pervasive Computing
Geo-fencing: Confining Wi-Fi Coverage to Physical Boundaries
Pervasive '09 Proceedings of the 7th International Conference on Pervasive Computing
Improving Location Fingerprinting through Motion Detection and Asynchronous Interval Labeling
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
Error Estimation for Indoor 802.11 Location Fingerprinting
LoCA '09 Proceedings of the 4th International Symposium on Location and Context Awareness
A study on user acceptance of error visualization techniques
Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking, and Services
Fundamental services for context-sensitive mobile applications
Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking, and Services
Physical Layer Attacks on Unlinkability in Wireless LANs
PETS '09 Proceedings of the 9th International Symposium on Privacy Enhancing Technologies
Large-scale localization from wireless signal strength
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 1
Adaptive localization in a dynamic WiFi environment through multi-view learning
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
Transferring multi-device localization models using latent multi-task learning
AAAI'08 Proceedings of the 23rd national conference on Artificial intelligence - Volume 3
WiFi-SLAM using Gaussian process latent variable models
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Recognizing places using spectrally clustered local matches
Robotics and Autonomous Systems
Navigation using environmental constraints
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Unsupervised Learning for Solving RSS Hardware Variance Problem in WiFi Localization
Mobile Networks and Applications
Zone-based rss reporting for location fingerprinting
PERVASIVE'07 Proceedings of the 5th international conference on Pervasive computing
Mapping by seeing: wearable vision-based dead-reckoning, and closing the loop
EuroSSC'07 Proceedings of the 2nd European conference on Smart sensing and context
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
A taxonomy for radio location fingerprinting
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
Local positioning system based on artificial neural networks
ICANN'07 Proceedings of the 17th international conference on Artificial neural networks
The directional attack on wireless localization: how to spoof your location with a tin can
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
A calibration-free localization solution for handling signal strength variance
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
Growing an organic indoor location system
Proceedings of the 8th international conference on Mobile systems, applications, and services
Cramér-Rao bound analysis of localization using signal strength difference as location fingerprint
INFOCOM'10 Proceedings of the 29th conference on Information communications
Personal and Ubiquitous Computing
Indoor localization without the pain
Proceedings of the sixteenth annual international conference on Mobile computing and networking
Utilization of user feedback in indoor positioning system
Pervasive and Mobile Computing
A grid-based algorithm for on-device GSM positioning
Proceedings of the 12th ACM international conference on Ubiquitous computing
sTrack: tracking in indoor symbolic space with RFID sensors
Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems
Tracking of mobile devices through Bluetooth contacts
Proceedings of the ACM CoNEXT Student Workshop
A comparison of deterministic and probabilistic methods for indoor localization
Journal of Systems and Software
Indoor location fingerprinting with heterogeneous clients
Pervasive and Mobile Computing
Aegis: physical space security for wireless networks with smart antennas
IEEE/ACM Transactions on Networking (TON)
A location-based management system for enterprise wireless LANs
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
Indoor localization without infrastructure using the acoustic background spectrum
MobiSys '11 Proceedings of the 9th international conference on Mobile systems, applications, and services
Demo: distance tracking using WLAN time of flight
MobiSys '11 Proceedings of the 9th international conference on Mobile systems, applications, and services
MAQS: a personalized mobile sensing system for indoor air quality monitoring
Proceedings of the 13th international conference on Ubiquitous computing
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
A 3-D indoor radio propagation model for WiFi and RFID
Proceedings of the 9th ACM international symposium on Mobility management and wireless access
WiGEM: a learning-based approach for indoor localization
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
CAESAR: carrier sense-based ranging in off-the-shelf 802.11 wireless LAN
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
Automatic mitigation of sensor variations for signal strength based location systems
LoCA'06 Proceedings of the Second international conference on Location- and Context-Awareness
Dynamic indoor localization using wireless ethernet: the ARIADNE system
WWIC'06 Proceedings of the 4th international conference on Wired/Wireless Internet Communications
A universal approach that makes legacy online content location-based
Proceedings of the 10th International Conference on Mobile and Ubiquitous Multimedia
Use of RSSI and time-of-flight wireless signal characteristics for location tracking
Proceedings of the 4th International Conference on PErvasive Technologies Related to Assistive Environments
Accurate GSM indoor localization
UbiComp'05 Proceedings of the 7th international conference on Ubiquitous Computing
Analysis of WLAN's received signal strength indication for indoor location fingerprinting
Pervasive and Mobile Computing
Towards fine-grained radio-based indoor location
Proceedings of the Twelfth Workshop on Mobile Computing Systems & Applications
Practical metropolitan-scale positioning for GSM phones
UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
Virtual compass: relative positioning to sense mobile social interactions
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Self-localization using fixations as landmarks
Proceedings of the Symposium on Eye Tracking Research and Applications
A layered model for user context management with controlled aging and imperfection handling
MRC'05 Proceedings of the Second international conference on Modeling and Retrieval of Context
Locanyms: towards privacy-preserving location-based services
Proceedings of the 1st European Workshop on AppRoaches to MObiquiTous Resilience
Proceedings of the 10th international conference on Mobile systems, applications, and services
You are facing the Mona Lisa: spot localization using PHY layer information
Proceedings of the 10th international conference on Mobile systems, applications, and services
Challenges for social sensing using WiFi signals
Proceedings of the 1st ACM workshop on Mobile systems for computational social science
Experimental comparison of bluetooth and wifi signal propagation for indoor localisation
WWIC'12 Proceedings of the 10th international conference on Wired/Wireless Internet Communication
Centaur: locating devices in an office environment
Proceedings of the 18th annual international conference on Mobile computing and networking
Zee: zero-effort crowdsourcing for indoor localization
Proceedings of the 18th annual international conference on Mobile computing and networking
AWESOM: automatic discrete partitioning of indoor spaces for wifi fingerprinting
Pervasive'12 Proceedings of the 10th international conference on Pervasive Computing
ARIEL: automatic wi-fi based room fingerprinting for indoor localization
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Evaluation of fine-granular GPS tracking on smartphones
Proceedings of the First ACM SIGSPATIAL International Workshop on Mobile Geographic Information Systems
RoomSense: an indoor positioning system for smartphones using active sound probing
Proceedings of the 4th Augmented Human International Conference
Smartphone-based Wi-Fi tracking system exploiting the RSS peak to overcome the RSS variance problem
Pervasive and Mobile Computing
ArrayTrack: a fine-grained indoor location system
nsdi'13 Proceedings of the 10th USENIX conference on Networked Systems Design and Implementation
Walkie-Markie: indoor pathway mapping made easy
nsdi'13 Proceedings of the 10th USENIX conference on Networked Systems Design and Implementation
Hallway based automatic indoor floorplan construction using room fingerprints
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
Zone based indoor mobile air pollution monitoring
Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication
A Multisensor Architecture Providing Location-based Services for Smartphones
Mobile Networks and Applications
Social-Loc: improving indoor localization with social sensing
Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems
Effective RSS sampling for forensic wireless localization
WASA'13 Proceedings of the 8th international conference on Wireless Algorithms, Systems, and Applications
Smartphone sensing offloading for efficiently supporting social sensing applications
Pervasive and Mobile Computing
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We demonstrate a system built using probabilistic techniques that allows for remarkably accurate localization across our entire office building using nothing more than the built-in signal intensity meter supplied by standard 802.11 cards. While prior systems have required significant investments of human labor to build a detailed signal map, we can train our system by spending less than one minute per office or region, walking around with a laptop and recording the observed signal intensities of our building's unmodified base stations. We actually collected over two minutes of data per office or region, about 28 man-hours of effort. Using less than half of this data to train the localizer, we can localize a user to the precise, correct location in over 95% of our attempts, across the entire building. Even in the most pathological cases, we almost never localize a user any more distant than to the neighboring office. A user can obtain this level of accuracy with only two or three signal intensity measurements, allowing for a high frame rate of localization results. Furthermore, with a brief calibration period, our system can be adapted to work with previously unknown user hardware. We present results demonstrating the robustness of our system against a variety of untrained time-varying phenomena, including the presence or absence of people in the building across the day. Our system is sufficiently robust to enable a variety of location-aware applications without requiring special-purpose hardware or complicated training and calibration procedures.