5G Radar: Scenarios, Numerology and Simulations

In this paper, we study the future 5G radar that uses the same transmit energy and the same spectral efficient multicarrier waveform for both radar sensing and communication. The technique is an interesting tool to open at the same time access to radio bands assigned traditionally either for radar or communication. The regulation status is first given, and then automotive, marine and aviation scenarios are presented. The numerology for the 5G radar is derived, and we show that the radar resolution requirement for adaptive cruise control is achieved with the radio band of 400 MHz. When the effective isotropic radiated power is 20 dBm, the operation ranges at the 60 GHz for radar and communication are 90 and 150 m, respectively. To maximize technology commonalities, a joint receiver for radar parameter estimation and timing synchronization is presented. The simulation results show that coarse range and velocity estimates are achieved in terms of the mean square error.