earticle

영어

In this paper, we propose a method for designing precoding vectors in integrated sensing and communication systems. When designing an optimization problem to maximize the signal-to-noise ratio (SNR) of a radar signal, existing methods use the signal-to-interference plus noise ratio (SINR) of communication users as a constraint, so precoding vectors for all users must be designed simultaneously, which requires a lot of calculations and takes a lot of time to find the optimal solution. On the other hand, the proposed method can solve the problems of existing methods by using the signal-to-leakage plus noise ratio (SLNR) of communication users as a constraint and designing each user's precoding vector independently. The performance of the proposed technique was analyzed through simulation, and it was shown that the SNR value of the radar signal is not significantly affected by the SLNR value of the communication user.