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This project aims to enhance location accuracy using Wi-Fi and GPS signals, benefiting disaster response, navigation, and app development. Various metrics and related works will be explored for evaluation.
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LAWS : Location Accuracy based on Wireless SignalsMaster Project Proposal Sri Naga Jahnavi Yeddanapudy
Outline • Introduction • Problem Statement • Background • Related Work • Metrics for Evaluation • Time Line • Deliverables LAWS: Location Accuracy Based on Wireless Signals
introduction • Need For Location Accuracy • Disaster/Security, e.g. E-911 • Better Direction • Geo-Fencing • Better Mobile Applications • Google map with accurate position display.. LAWS: Location Accuracy based on Wireless Signals
Problem Statement • Determine Location accuracy based on Wi-Fi and GPS signals. LAWS: Location Accuracy based on Wireless Signals
Background • GPS information – Latitude , Longitude, Altitude. • Its inaccuracy comes from blocking of signals from GPS satellites, e.g. indoor problem. • Wi-Fi derived location information • The GPS location of Wireless access point (AP) • BSSID can be used to identify uniquely the signal of an AP. • By correlating the strength of three AP signal we can estimate the location of a Wi-Fi receiver. • The inaccuracy comes from signal to noise ratio, shielding effect LAWS: Location Accuracy based on Wireless Signals
Related Work • WiFi GPS based Combined positioning Algorithm[Zirari et al,2010] • Improve GPS Positioning Accuracy with Context Awareness[Huang,2008] • Analyze spoofing attacks on single and multiple receivers in civilian and military GPS systems [Tippenhauer et al, 2011] • Development of a Portable GPS Civilian Spoofer [Humphreys et al, 2008] • Android Application to alert driver in school zone if over speeding [Whipple et al, 2009] • IT Forensic analysis based on IP Geo location information [Koch et al, 2015] LAWS: Location Accuracy based on Wireless Signals
METRICs for Evaluation • Accuracy • Time Performance LAWS: Location Accuracy based on Wireless Signals
Goal of the Project • Conduct experiments to evaluate location accuracy based on Wi-Fi signals and GPS signals. • Our experiments focus on outdoor such UCCS Alpine Soccer Field or Alpine parking garage or central court or older Engineering building because we have better shielding effect on the wall door. • Develop an Android Application for collecting Wi-Fi base station information., signal strength, device GPS Signals and reported location. • Develop and algorithm to calculate android phone location based on the Wi-Fi signal strength. • Based on the availability of the base station data, compare the android phone signal strength with those observed by the base station. LAWS: Location Accuracy based on Wireless Signals
Time Line LAWS: Location Accuracy based on Wireless Signals
Deliverables • Android Application for Location accuracy based on Wi-Fi and GPS signals. • A Project report documenting the software prototype LAWS. LAWS: Location Accuracy based on Wireless Signals
References • Soumaya Zirari, Philippe Canalda and Francois Spies, “WiFi GPS based Combined positioning Algorithm”, Wireless Communications, Networking and Information Security (WCNIS), 2010 IEEE International Conference, Pages 684-688, June 25-27 2010. • Jiung-yao Huang, Chung-Hsien Tsai, “Improve GPS Positioning Accuracy with Context Awareness”, Ubi-Media Computing, 2008 First IEEE International Conference, Pages 94-99, July 31 – Aug 1 2008. • Nils Ole Tippenhauer, Christina Popper, Kasper B. Rasmussen, Srdjan Capkun, “On the Requirements for Successful GPS Spoofing Attacks”, CCS '11 Proceedings of the 18th ACM conference on Computer and communications security, Pages 75-86, October 17 2011. • Todd E. Humphreys, Brent M. Ledvina, Mark L. Psiaki, Brady W. O'Hanlon, and Paul M. Kintner, Jr., “Assessing the Spoofing Threat: Development of a Portable GPS Civilian Spoofer”, ION GNSS Conference Savanna, GA, September 16–19, 2008. • John Whipple, William Arensman, Marian Starr Boler, “A Public Safety Application of GPS-Enabled Smartphones and the Android Operating System”, Proceedings of the 2009 IEEE International Conference on Systems, Man, and Cybernetics, Pages 2059-2061, October 11-14 2009. • Robert Koch, Mario Golling, Lars Stiemert, and Gabi Dreo Rodosek, “Using Geolocation for the Strategic Preincident Preparation of an IT Forensics Analysis”, Systems Journal, IEEE, Pages 1-12, February 16 2015. LAWS: Location Accuracy based on Wireless Signals
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