- Research: From Shannon to Google, Panel address at IEEE Conference on Computer Communications (INFOCOM 2010), San Diego, CA, USA, March 16, 2010.
- Spectrum as a National Resource: New Opportunities for Wireless Networking, invited sessions at joint ACM MobiCom & IEEE MobiHoc conferences, Chicago, Illinois, USA, September 23, 2010.
- Efficient Access to Radio Spectrum, Air Force Research Laboratories, Rome, NY, USA, September 16, 2010.
- Cognitive Radio Networks, US DOD - Finland Technical Workshop on Wireless Technologies: Cognitive Radio/Networking, Embassy of Finland, Washington DC, USA, May 25, 2010.
- On the Science and Engineering of Protocols for Dynamic Complex Networks, keynote speech, 28th IEEE International Performance Computing and Communications Conference (IPCCC 2009), Phoenix, AZ, USA, December 14, 2009.
- Trends and Directions in Sensor Network Research, panel held at IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON2009), Rome, Italy, June 24, 2009.
- Opening Remarks for Future Wireless Networks Workshop, National Science Foundation, Arlington, VA, USA, November 2, 2009.