Vehicle-to-Everything (V2X) Communications in Unlicensed Spectrum Can Be Safe & Efficient
To meet the communications demands of connected vehicles, the wireless devices deployed in vehicles and on roadside infrastructure may need access to more spectrum than is available today. This presentation describes a novel approach that allows connected vehicle devices using V2X technology (e.g., C-V2X or NR-V2X) to share spectrum with Wi-Fi and other unlicensed devices, thereby gaining access to more spectrum. Each vehicle dynamically and independently adjusts to its environment in a manner that gives connected V2X devices access to enough of the shared spectrum to meet their quality-of-service requirements, while leaving as much spectrum as possible for Wi-Fi. As a result, this approach uses spectrum more efficiently than the current approach of establishing one spectrum band exclusively for connected vehicles and another spectrum band exclusively for Wi-Fi and other unlicensed devices. The proposed approach uses a backward-compatible form of implicit beaconing that requires no change to Wi-Fi technology, so there is no need to replace Wi-Fi devices that have been deployed, and the approach requires only modest modifications to V2X which reduces cost and complexity. The approach also does not require involvement from a cellular operator or other centralized controller. Simulation results show that it is possible to protect quality of service for both V2X and Wi-Fi communications in a shared band, while achieving high spectrum efficiency. One spectrum band where this approach could be especially beneficial is adjacent to the Intelligent Transportation System (ITS) band, where this approach could help meet the needs of both connected vehicles and Wi-Fi 6.
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- 901 12th Ave
- Seattle, Washington
- United States 98122
- Building: Bannan
- Room Number: 353
- Click here for Map
- Starts 03 December 2025 08:00 AM UTC
- Ends 17 December 2025 08:00 AM UTC
- No Admission Charge
Speakers
Jon Peha of Carnegie Mellon University
Vehicle-to-Everything (V2X) Communications in Unlicensed Spectrum Can Be Safe and Efficient
Biography:
Jon Peha is a Professor and Center Director at Carnegie Mellon University (CMU). He has served at the Federal Communications Commission as the Chief Technologist, in the White House as Assistant Director of the Office of Science and Technology Policy, in industry as Chief Technical Officer of three high-tech companies, in the House Energy and Commerce Committee, and at USAID where he helped launch and then led a U.S. Government interagency program to assist developing countries with information infrastructure. At CMU, Dr. Peha is a Professor in the Dept. of Engineering & Public Policy and the Dept. of Electrical & Computer Engineering, Director of CMU's Center for Executive Education in Technology Policy, and former Associate Director of the Center for Wireless & Broadband Networking.
Dr. Peha also holds a PhD in electrical engineering from Stanford, and a BS from Brown. He is an IEEE Fellow, an ALA Fellow, and an AAAS Fellow. Dr. Peha has received the FCC's "Excellence in Engineering Award" for contributions to the U.S. National Broadband Plan, the IEEE Communications Society TCCN Publication Award for career contributions to spectrum management, the Teare Award for Educational Innovation and Leadership, and the Brown Engineering Medal.
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