Location-based services (LBS) have become an integral part of our daily life with applications including car navigation, location-based social networks, and context-aware predication and advertisement. Different LBS require different localization accuracies; Generally, GPS is considered the de facto standard for ubiquitous and accurate outdoor navigation. However, GPS is an energy-hungry technology that can drain the scarce battery resource of mobile devices quickly. In addition, its accuracy is limited in areas with obscured access to the satellites, e.g. in tunnels and many urban areas.
To address the GPS deficiencies, a number of outdoor localization systems have been proposed over the years. However, this saving in energy usually comes at a reduced localization accuracy.
In this project, we aim to develop ubiquitous GPS alternative systems that is capable of achieving both energy efficiency and high localization accuracy. In particular, the project targets the development of accurate outdoor localization systems for mobile devices by utilizing the different sensors available on the phone.
Sponsors
This project is partially funded by grants from Google, the KACST National Science and Technology and the KACST GIS Technology Innovation Center at Umm Al-Qura University.
People
- Prof. Moustafa Youssef
- Mohamed Ibrahim
- Heba Aly
- Reham Mohamed
Collaborators
- Dr. Anas Basalamah (Umm Al-Qura University)
- Shuja Jamil Sheikh (Umm Al-Qura University)
Talks
CellSense:
Dejavu:
- Nile News (Egyptian Satellite TV Channel) interview covering the Dejavu system
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CBC (Egyptian Satellite TV Channel) Interview about the GPS-Free Outdoor Localization System
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Egyptian National TV Interview about the GPS-Free Outdoor Localization System
Press and Media Coverage
Dejavu:
- ONTV (Egyptian Satellite TV Channel)
- Al-Ahram Gate
- Youm 7
- Al Dostor
- Gomhuria Online
- Veto Gate
- Al Mogaz
List of Publications
Journal Publications
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Automatic Rich Map Semantics Identification through Smartphone-based Crowd-sensing
Heba Aly, Anas Basalamah and Moustafa Youssef
IEEE Transactions on Mobile Computing, 2016.
Download: PDF -
Accurate Real-time Map Matching for Challenging Environments
Reham Mohamed, Heba Aly and Moustafa Youssef
IEEE Transactions on Intelligent Transportation Systems, 2016.
Download: PDF -
Robust and Ubiquitous Smartphone-based Lane Detection
Heba Aly, Anas Basalamah and Moustafa Youssef
Pervasive and Mobile Computing (PMC), 2015. (Invited)
Download: PDF -
CellSense: An Accurate Energy-Efficient GSM Positioning System
Mohamed Ibrahim and Moustafa Youssef
IEEE TVT (IEEE Transactions on Vehicular Technology) 2012.
Download: PDF
Conference Publications
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semMatch: Road Semantics-based Accurate Map Matching for Challenging Positioning Data
Heba Aly and Moustafa Youssef
ACM SIGSPATIAL 2015. Full Paper Acceptance Rate 18%.
Download: PDF -
LaneQuest: An Accurate and Energy-Efficient Lane Detection System
Heba Aly, Anas Basalamah and Moustafa Youssef
IEEE PerCom 2015. Full Paper Acceptance Rate 7.7%.
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Dejavu: An Accurate Energy-Efficient Outdoor Localization System
Heba Aly and Moustafa Youssef
ACM SIGSPATIAL 2013. Acceptance Rate 17%. The Best Paper Award in The ACM SIGSPATIAL’13
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Map++: A Crowd-sensing System for Automatic Map Semantics Identification
Heba Aly, Anas Basalamah and Moustafa Youssef
IEEE SECON 2014. Acceptance Rate 19.8%.
Download: PDF -
Accurate and Efficient Map Matching for Challenging Environments
Reham Mohamed, Heba Aly and Moustafa Youssef
ACM SIGSPATIAL GIS 2014.
PDF -
A Hidden Markov Model for Localization Using Low-End GSM Cell Phones
Mohamed Ibrahim and Moustafa Youssef
IEEE ICC 2011.
Download: PDF -
CellSense: A Probabilistic RSSI-based GSM Positioning System
Mohamed Ibrahim and Moustafa Youssef
IEEE Globecom 2010.
Download: PDF
Demos & Posters
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Smartphone-based Crowd-sensing for Digital Maps Semantics Enrichment
Heba Aly
N2Women Workshop at ACM MobiCom 2016. The Best Poster Award -
Demonstrating Map++: A Crowd-sensing System for Automatic Map Semantics Identification
Shuja Jamil Sheikh, Anas Basalamah, Heba Aly and Moustafa Youssef
IEEE SECON 2014.
Download: PDF