LAWS : Location Accuracy based on Wireless Signals Master Project Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Outline of the talk Introduction Background Related Work Design Implementation Performance Evaluation Challenges faced Lessons learnt Future Work Conclusion References 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy introduction Need For Location Accuracy Disaster/Security, e.g. E-911 Better Direction Geo-Fencing 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Background GPS information – Latitude , Longitude 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. 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Free Space Path Loss - characterizes how the wireless signal degrades over distance (following an inverse square law): Trilateration 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Related Work Wi-Fi GPS based Combined positioning Algorithm [Zirari et al,2010] Improve GPS Positioning Accuracy with Context Awareness [Huang,2008] Task remainder based on location [Lin and Hung, 2014] Validating crowd sensed data using image processing [Talasila, 2013] 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] 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

Location Accuracy Based on Wireless Signals Assumptions End user must have Android Studio installed to deploy the application. We assume that they is no hackers trying to change or spoof the GPS and Wi-Fi location information. The Android applications that are developed serve the Android smart phones or tablets which have minimum API 15 : Android 4.0.3(Ice cream Sandwich) LAWS System is provided to Smart phone GPS application to determine the user location. Wi-Fi application to provide the user location based on Wi-Fi and Geo location information. 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Design 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Implementation LAWS GPS Android Application LAWS Wi-Fi Android Application Location – Geo location -Google Client API Wi-Fi Manager Wi-Fi trilateration Technologies used : Android Studio 1.5 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy LAWS GPS Application 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy LAWS Wi-Fi 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

User location points determined using Wi-Fi trilateration 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

User location points determined using Wi-Fi trilateration 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

Alpine Center GPS value generated using Wi-Fi trilateration 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

Pseudo code of GPS Smart Phone application 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

Pseudo code for Wi-Fi Scan LAWS/Sri Naga Jahnavi Yeddanapudy 12/17/2019

Pseudo code for Wi-Fi trilateration 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

Performance Evaluation 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Error values 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Average and Variance 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

Average and Variance (Cont.) 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Performance analysis Performance of the GPS is 75% better than the Wi-Fi derived information based on the 90 samples that were collected for the Smart Phone GPS data. Based on the nine values of the smart phones geolocation data, the performance of the GPS is 50% better than the Wi-Fi derived information. 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Challenges Faced 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Challenges faced 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Challenges faced 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Lessons learnt Wi - Fi API and Google Client API are very useful. Android Programming using Android Studio is easy to learn. How to develop a user friendly application. 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Future work Design and develop E-911 Service GPS Verification Service.   Dynamic evaluation 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy conclusion Designed and implemented system for Location Accuracy based on Wireless Signals Provide User location information through GPS Application Provide User location information through Wi-Fi application I conducted experiments to investigate the location accuracy based on Wi-Fi and GPS information and LAWS systems results show that GPS approximately 50% more accurate than Wi-Fi. 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy 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. Chi-Yi Lin & Ming-Tze Hung, “A location-based personal task reminder for mobile users”, Pages 303-314, Personal and Ubiquitous Computing archive, Volume 18 Issue 2, February 2014. Manoop Talasila, Reza Curtmola, and Cristian Borcea, “Improving Location Reliability in Crowd Sensed Data with Minimal Efforts”, Pages 1-8, Wireless and Mobile Networking Conference (WMNC), 2013 6th Joint IFIP, 23-25 April 2013. 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. https://developers.google.com/android/reference/com/google/android/gms/common/api/GoogleApiClient http://developer.android.com/reference/android/net/wifi/WifiManager.html https://recalll.co/app/?q=mapping%20-%20transform%20longitude%20latitude%20into%20meters. http://www.trimblesupport.com/GeoXT.html 12/17/2019 LAWS/Sri Naga Jahnavi Yeddanapudy

LAWS/Sri Naga Jahnavi Yeddanapudy Q & A LAWS/Sri Naga Jahnavi Yeddanapudy 12/17/2019