Coverage Analysis for Air-Ground Integrated-Sensing-and-Communication Networks

The analysis of network performance is an important guide for network deployment and design. In this work, the low-altitude integrated sensing and communication (ISAC) networks performance is studied in terms of communication coverage at the network level, where the ISAC base station (BS) serves the terrestrial communication users (CUs) while sensing the aerial targets. In contrast to previous works, the specific beamforming schemes rather than simple antenna beam gain are considered. As the interferences from other BSs during sensing are non-negligible, the cooperative beamforming design is necessary for effective sensing. Following the common fashion of stochastic geometry, the BSs, CUs and sensing targets are randomly distributed as two-dimensional homogeneous Poisson point processes (HPPP). By comparing HPPP model with the lattice model and actual BS deployment, it can be observed that the presented analysis in HPPP model and ideal lattice model are the lower and upper bounds of the actual deployments, respectively.