论文标题
传输电源分配以通过大量的MIMO阵列传输联合通信和传感
Transmit Power Allocation for Joint Communication and Sensing through Massive MIMO Arrays
论文作者
论文摘要
该论文考虑了一种场景，其中一个基于大规模天线阵列的基站（BS）使用相同的频率范围执行，与移动用户进行通信和周围环境的雷达监视，并依赖于大型MIMO阵列合成多个狭窄光束的能力。基于通信和监视任务的OFDM信号格式，提供了可实现的系统下链路速率的下限，以及不需要任何有关目标参数知识的GLRT检测规则。然后，提出了一种功率分配策略，旨在最大程度地提高移动用户的公平性，同时确保雷达系统的最小信号与干扰率阈值。数值结果表明，系统可以有效地性能，并且功率控制程序有助于改善系统的公平性。
The paper considers a scenario where a base station (BS), equipped with a large-scale antenna array, execute, using the same frequency range, both communication with mobile users and radar surveillance of the surrounding environment, relying on the ability of the massive MIMO array to synthesize multiple narrow beams. Based on an OFDM signaling format for both communication and surveillance tasks, a lower bound to the system achievable downlink rate is provided, along with a GLRT detection rule that does not require any knowledge about the target parameters. Then, a power allocation strategy is proposed, aimed at maximizing the fairness across the mobile users, while guaranteeing a minimum signal to interference ratio threshold value for the radar system. Numerical results show that the system performs effectively, and that the power control procedure helps in improving the system fairness.
