论文标题
全息综合感应和通信：原理，技术和实施
Holographic Integrated Sensing and Communications: Principles, Technology, and Implementation
论文作者
论文摘要
综合感应和沟通（ISAC）吸引了很多关注，这是减轻频谱拥塞的一种有希望的方法。但是，传统的ISAC系统依靠分阶段来提供高空间多样性，其中使用了巨大的功耗组件，例如相位变速器，从而导致系统的高功率消耗。在本文中，我们介绍了一种新的范式ISAC，这是一种新的范式，可通过使用可重构全息表面（RHSS）来实现低功耗的高空间多样性，这是一种具有创新类型的平面天线，具有密集型的地材元素。我们首先介绍了RHS的硬件结构和工作原理，然后为ISAC提出了一种新颖的全息光束方案。此外，我们为ISAC构建了一个启用RHS的硬件原型，并评估已建立原型中的系统性能。仿真和实验结果验证了全息ISAC的可行性，并揭示了RHS减少功耗的巨大潜力。此外，讨论了与全息ISAC有关的未来研究方向和关键挑战。
Integrated sensing and communication (ISAC) has attracted much attention as a promising approach to alleviate spectrum congestion. However, traditional ISAC systems rely on phased arrays to provide high spatial diversity, where enormous power-consuming components such as phase shifters are used, leading to the high power consumption of the system. In this article, we introduce holographic ISAC, a new paradigm to enable high spatial diversity with low power consumption by using reconfigurable holographic surfaces (RHSs), which is an innovative type of planar antenna with densely deployed metamaterial elements. We first introduce the hardware structure and working principle of the RHS and then propose a novel holographic beamforming scheme for ISAC. Moreover, we build an RHS-enabled hardware prototype for ISAC and evaluate the system performance in the built prototype. Simulation and experimental results verify the feasibility of holographic ISAC and reveal the great potential of the RHS for reducing power consumption. Furthermore, future research directions and key challenges related to holographic ISAC are discussed.
