Architecture of GreenLinks- Solar powered cellular networks
Speckle captured using USB microscope
Mapped farm lands in rural Ghana captured by AgricNotes android app.
ESOKO sends commodity price alerts via SMS to farmers all over Ghana
Dengue Surveillance system predicts intensity of dengue at a block level in a city as early as 11 days before the event.
Using RuralCafe: A Browser for Rural Areas
The first picture, taken at 5:15pm shows an empty road in Rio de Janeiro, Brazil. Barely 5 minutes later, the road is completely jammed up.
Pridicted Drought Map of India
Cryptagram enhances online photo privacy and converts regular images into JPEG images that look like random noise.
Current Projects
Wireless and Mobile Systems
Connectivity and Web access
- GreenLinks: Solar powered cellular networks
- MobileWeb: Faster Web access over cellular networks
Crowdsourcing
- AgricNotes: Analytics platform for Rural Agriculture
- Dengue Prediction: Fine-grained dengue surveillance at a sub-city level
Mobile security
- PaperSpeckle (Entrupy): Fingerprinting physical objects
- Secure Mobile Identities (SMI): A secure identity layer for mobile devices
Big Data
Inference
- News Analytics
- Satellite Land Analytics: High performance Multi-radio mesh networks
- Traffic: Early prediction of traffic jams
Networks and Markets
Data privacy
- Cryptagram: Photo privacy
- LockBox: Private file fearing in the cloud
- Compass: Privacy-aware social network
Past Projects
Rural Wireless Networks
Mobile Information Services for Emerging Regions
- UjU: A mobile application platform for SMS-based mobile applications.
- SmartTrack: A reliable, secure and distributed mobile information system.
- Hermes: Data over GSM voice codec
- SMSFind: An SMS-based web search engine.
- Atmosphere: An intermittent mobile rural ATM
Re-architecting the Web for Emerging Regions
- RuralCafe: Asynchronous, yet interactive, web browsing
- Contextual Information Portals: Vertical slicing of the Web for offline information access.
- Sub-packet regimes: Low bandwidth transport layer
- ELF: Event Logger for Firefox is an end-host optimization engine for Web access
Social and Societal Networks
- SumUp/Gatekeeper: Sybil-resilient Content voting and admission control
- Kaleidoscope: Censorship circumvention using social networks
- Credo: P2P Content rating system
- Road Traffic Networks: Congestion avoidance in road traffic networks
Trust and Identity Management
- PaperSpeckle: Unique paper fingerprinting
- Epothecary: Mobile pedigree verification of supply chain distribution
- Signet: Auditable transactions using SIM cards
Data for Development
- Climatic Information Portals: Location-specific summarization of climatic and agricultural trends
Other Projects
- Decentralized Secure Routing Protocols (thesis work)
- Listen and Whisper: Security mechanisms for BGP
- OverQoS: Overlay-based QoS for the Internet
- HLP: Next-generation Interdomain routing
- One more bit is enough: Congestion control for high bandwidth-delay product networks
- Internet topology characterization
- Root cause analysis of BGP dynamics
- Geographic properties of the Internet
- Coordinated worm containment