The Internet Real-Time Lab (IRT) in the Computer Science Department at Columbia University is a group of graduate students, research engineers and visitors under the guidance of Prof. Henning Schulzrinne.
The IRT Lab conducts research to address key internet issues:
- Internet of Things: scale, usability, programmability and security
- Broadband deployment and digital equity: data analysis and public policy issues
- Internet multimedia and mission-critical voice: protocols, algorithms and measurements
- Internet telephony: preventing robocalls
We design and analyze new protocols, perform prototyping and measurements, pursue their standardization in the IETF and transfer technology to companies.
Some of the projects that have been or are currently being researched at the IRT Lab include:
- SONIC - 5G
- RADICS - networks to restore the electric grid after catastrophic failure
- Voice quality for mission-critical voice for first responders
- Session Initiation Protocol (SIP)
- Application and desktop Sharing
- 7DS - Information exchange in disconnected networks
- VoIP for wireless networks
- Emergency services -- NG911
- GloServ: global service discovery architecture
- QoS measurement for VoIP
- Peer-to-peer IP telephony
- Training FAA using SIP and RTP
- Over-the-top (OTT) video streaming analysis
For more details, have a look at all our projects or our publications.