Multi-Range Joint Automotive Radar and Communication using Pilot-based OFDM Radar

To address the increasing communication demand driven by envisioned large-scale connected vehicle deployments, the dual use of the 76-81 GHz automotive radar frequency band for joint automotive radar and communication (JARC) system has gained significant interest given the wide and dedicated bandwidth. In this paper, we propose and evaluate a multi-range joint automotive radar and communication system based on pilot-based OFDM waveform. The proposed JARC system exploits the dynamic allocation of pilot subcarriers to switch between radar specifications for different ranges, e.g. short-range radar (SRR), mid-range radar (MRR) and long-range radar (LRR), to minimize the age of information of the covered regions, while dynamically adjusting the communication data rate based on traffic load.