Detection Probability Maximization Scheme in Integrated Sensing and Communication Systems

Abstract

Dual functional radar communication (DFRC) is a promising approach that provides a viable solution for the problem of spectrum sharing between communication and radar applications. This paper studies a DFRC system with multiple communication users (CUs) and one radar target. The goal is to devise beamforming vectors at the DFRC transmitter in such a way that the radar received signal to noise ratio (SNR) is maximized while the minimum data rate requirements of the individual CUs are satisfied. Even though the formulated optimization problem is non-convex, it is shown that it can be solved optimally through semi-definite relaxation (SDR). Also, it is observed that there is no need to transmit dedicated probing signal for the radar detection.