Performance of Joint Radar and Communication Enabled Cooperative Detection

Multi-radar cooperative detection can expand the detection region effectively, where the wireless communication is applied for data fusion. Traditionally, the radar and communication are separately designed. However, the joint radar and communication (JRC) system allows hardware and spectrum reuse. In this letter, we apply stochastic geometry to analyze the performance of JRC enabled cooperative detection for drone surveillance. The surveillance radars detect targets with main beams and share the detection results with sub beams. We defined and derived the detection volume which is the union of the cooperative detection regions to measure the performance of multi-radar. To maximize this region, the optimal fraction of power allocation between radar and communication is obtained. The Monte Carlo simulation results have verified the correctness of the theoretical analysis. The theoretical analysis results provide a guideline for the design of JRC with beam sharing.