RadChat: Spectrum Sharing for Automotive Radar Interference Mitigation
Journal article, 2021

In the automotive sector, both radars and wireless communication are susceptible to interference. However, combining the radar and communication systems, i.e., radio frequency (RF) communications and sensing convergence, has the potential to mitigate interference in both systems. This article analyses the mutual interference of spectrally coexistent frequency modulated continuous wave (FMCW) radar and communication systems in terms of occurrence probability and impact, and introduces RadChat, a distributed networking protocol for mitigation of interference among FMCW based automotive radars, including self-interference, using radar and communication cooperation. The results show that RadChat can significantly reduce radar mutual interference in single-hop vehicular networks in less than 80 ms.


vehicular ad hoc networks

vehicle safety


access protocols

Cooperative radar-communications


Canan Aydogdu

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Furkan Keskin

Chalmers, Electrical Engineering, Systems and control

Nil Garcia

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Henk Wymeersch

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Daniel W. Bliss

Arizona State University

IEEE Transactions on Intelligent Transportation Systems

1524-9050 (ISSN) 1558-0016 (eISSN)

Vol. 22 1 416-429 8943325

Combined Radar-Based Communication and Interference Mitigation for Automotive Applications

VINNOVA (2018-01929), 2019-01-01 -- 2020-12-31.

A High-Sensitive Green Localization System for High-Speed Self-Driving Vehicles (GREENLOC)

European Commission (EC) (EC/H2020/745706), 2017-01-01 -- 2018-12-31.

Areas of Advance

Information and Communication Technology


Driving Forces

Sustainable development

Innovation and entrepreneurship

Subject Categories

Transport Systems and Logistics

Communication Systems

Control Engineering



More information

Latest update

4/5/2022 7