Ray-Tracing Based Large Indoor Office Base Station Deployment Optimization at Millimeter Wave Bands

Currently, the millimeter wave (mmWave) technology is widely considered as one of the key technologies of the fifth generation (5G) and the sixth generation (6G) communication systems. Meanwhile, due to the sensitivity of mmWave to indoor obstacles, the base station (BS) deployment problem needs to be further studied based on ray-tracing method. In this paper, we establish a cost function to numerically evaluate the coverage and quality of signal in a mmWave network. Then, we propose a BS location optimization algorithm and an initial solution computation method to minimize the cost function and find the optimal BS locations by optimizing the path loss and signal-to-interference-plus-noise-ratio (SINR). The numerical results show that our proposed algorithm finds the optimum BS location and the initial solution computation method can reduce the convergence time of the algorithm.