Intelligent wireless systems with integrated communications and sensing

无线通信系统已经给我们的生活带来了无数的升级，它将继续带领我们走向一个物理和虚拟融为一体的未来。该研究计划侧重于未来5G无线系统的三个核心方面：通信，传感及其统一。这些方面的概念和技术突破对于定义未来无线系统的极端性能、上下文感知视觉和高精度传感至关重要。该计划的第一部分是关于传感智能的通信设计。GHz/THz频带的使用使得具有小尺寸的高增益天线成为可能，从而产生用于通信的新结构。一个典型的未来场景是超密集网络，其中无处不在的接入点配备有可重构智能表面（RIS）。我们将研究他们的收发器设计和用户访问。与目前的方法相比，我们的重点是效率，低复杂性和真正的用户体验，而不是容量优化。我们进一步针对解决方案，是自主的可用上下文信息。下一部分是关于无线系统的感知潜力。Beyond-5G系统具有高频、大带宽、RIS和用户密集化的特点，能够实现高精度的普适感知。我们将研究在无线系统中与通信约束的传感。两个短期的焦点是盲分布式频谱感知和分布式估计的通信上下文。我们将探索传感设计，可以利用扩散的移动的设备，并具有低流量的数据交换，以限制无线系统的负担。将建立一个有效的传感过程，包括采样、数据分析、数据交换和决策。第三部分是通信与传感的统一。以往在通信领域和传感领域的研究目标和范围不同，限制了它们的相互联系。相比之下，我们将把通信和传感设计的经验与新结构结合起来，通过短期目标（如用于RIS辅助超密集系统的交错训练和收发器设计）推导出相互作用和权衡的规律。我们还将探索另一种“自上而下”的方法，即从超越5G的宏伟愿景出发，分解和实现必要的模块，如上下文提取，QoS诊断和联合设计，以实现统一。现在是研究人员为超越5G系统奠定基础的时候了。我们需要重新思考数据的收集、处理、传输和消费方式，以便在未来实现物理和虚拟的无缝集成。拟议的研究旨在从通信，传感及其统一的核心方面研究未来智能无线系统的概念，设计和分析结果。该计划还将为各级HQP提供全面的培训。

Having led to numerous upgrades in our lives, wireless communication systems continue to carry us towards a future where the physical and the virtual become one. This research program focuses on the three core aspects of future beyond-5G wireless systems: communications, sensing, and their unification. Conceptual and technological breakthroughs in these aspects are crucial for the extreme performance, context-aware vision and high precision sensing that define future wireless systems. The first part of the program is on communication designs with sensing intelligence. The use of GHz/THz frequency band enables high gain antennas with small dimensions, leading to new structures for communications. One typical future scenario is ultra-dense networks with ubiquitous access points equipped with reconfigurable intelligent surfaces (RISs). We will study their transceiver designs and user access. In contrast to current approaches, our focus is on efficiency, low complexity, and true user experience instead of capacity-optimality. We further target at solutions that are autonomous to available context information. The next part is on sensing potential of wireless systems. Beyond-5G systems are featured by high frequency, large bandwidth, RISs and user densification, enabling pervasive sensing with high precision. We will study sensing in wireless systems with communication constraints. Two short-term focuses are blind distributed spectrum sensing and distributed estimation of communications context. We will explore sensing designs that can exploit the proliferation of mobile devices and have low traffic data exchange to limit the burden to the wireless systems. An efficient  sensing process will be established including sampling, data analytics, data exchange and decision-making. The third part is the unification of communications and sensing. Past researches in the communications field and the sensing field have distinct objectives and scopes, restraining their interconnection. In contrast, we will piece together experiences from communications and sensing designs with new structures to derive laws of interaction and tradeoff, through short-term objectives such as the interleaved training and transceiver designs for RIS-assisted ultra-dense systems. We will also explore the alternate "top-down" approach of starting from the grand vision of beyond-5G to break down and materialize essential modules, such as context extraction, QoS diagnosis, and joint design, for the unification. It is high time researchers laid the foundation for beyond-5G systems. We need to rethink how data are collected, processed, transmitted and consumed for a future where the physical and the virtual are seamlessly integrated. The proposed research aims at results in the concept, design, and analysis of future intelligent wireless systems from the core aspects of communications, sensing and their unification. The program will also provide thorough training for HQP at all levels.