Reconfigurable Intelligent Surfaces 2.0 for 6G: Beyond Diagonal Phase Shift Matrices

适用于 6G 的可重构智能表面 2.0：超越对角相移矩阵

• 批准号: EP/Y004086/1
• 负责人: Bruno Clerckx
• 金额: $ 113.55万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY004086%2F1
• 关键词: Reconfigurable; Intelligent; Surfaces; 2.0; 6G

Reconfigurable intelligent surface (RIS) has gained much traction due to its potential to manipulate the propagation environment via nearly-passive reconfigurable elements. Attention has been drawn to the use of RIS 1.0 architectures based on diagonal scattering (phase shift) matrices where each element of the RIS is connected to a load disconnected from the other elements. This enables simple RIS architectures to control the phase of the impinging wave and reflect the wave in the desired direction. This project argues that to truly exploit the benefits of RIS in 6G, RIS 2.0 need to explore architectures beyond conventional diagonal phase shift matrices. Beyond Diagonal (BD) RIS, pioneered by the PI and viewed as a paradigm shift in RIS design, relies on a suitable design of the reconfigurable impedance network and the connection architecture to smartly connect RIS elements to each other and exploit off-diagonal elements of the scattering matrices. BD-RIS has been shown to offer new opportunities over RIS 1.0 by controlling both phases and magnitudes of reflected waves, enabling hybrid transmissive and reflective mode, increasing reflected power, boosting spectral efficiency, enhancing flexibility in various deployments, and enabling highly directional full-space coverage.Motivated by those recent results by the PI and leveraging a unique set of complementary skills with our academic and industry partners HKUST, Interdigital and Viavi, this visionary project, conducted at Imperial College London, will take BD-RIS to the next level, by laying the foundations of BD-RIS aided network design, identifying the full potential benefits of BD-RIS for next generation wireless networks (communications, sensing, power), and assessing the feasibility of BD-RIS. This will be the first project on BD-RIS in the UK and in the world. To put together this revolutionary BD-RIS in a credible fashion, this project focuses on 1) developing physical and electromagnetic compliant models for BD-RIS, 2) conceiving new BD-RIS architecture, control, optimization, and signal processing, 3) inventing new wireless systems paradigms and applications enabled by BD-RIS, 4) demonstrating the feasibility of BD-RIS through prototyping and experimentation.The project demands a strong and inter-disciplinary track record in microwave theory, optimisation, multi-antenna signal processing, wireless communication, machine learning, and it is to be conducted in a unique research group with a right mix of theoretical and practical skills and an established track record in the area. With the above and given the novelty and originality of the topic, the research outcomes will be of considerable value to transform the future of wireless networks and give the industry a fresh and timely insight into the development of BD-RIS for 6G and advancing UK's research profile in 6G. Its success would radically change the design of radio access networks, have a tremendous impact on standardisation, and applications in many sectors involving future communications, power, and sensing networks.

可重新配置的智能表面（RIS）由于其通过几乎可弥补的可重新配置元素来操纵繁殖环境的潜力而获得了很多吸引力。人们注意使用基于对角散射（相移）矩阵的RIS 1.0架构，其中RIS的每个元素都连接到与其他元素断开的负载。这使简单的RIS体系结构能够控制撞击波的相位，并在所需方向上反射波。该项目认为，要真正利用RIS在6G中的好处，RIS 2.0需要探索除常规的对角线相移矩阵以外的架构。除对角线（BD）RIS之外，由PI开创并被视为RIS设计的范式转移，还依赖于可重新配置的阻抗网络的合适设计和连接体系结构，以智能地将RIS元素相互连接并利用散射矩阵的异性元素。 BD-RIS已被证明可以通过控制反射波的阶段和大幅度，从而提供新的机会，从而实现杂种透射式和反射性模式，提高反射能力，提高频谱效率，提高频谱效率，提高了各种部署的灵活性，并通过那些彼此的既定范围和既定的，并实现了彼得的范围。在伦敦帝国学院进行的这个有远见的项目HKUST，Intrigital和Viavi将通过奠定BD-RIS辅助网络设计的基础，将BD-RIS的基础提升到新的水平，从而确定BD-RIS对下一代无线网络的全部潜在优势（通信，传感，传感，力量），并评估BD RIS的可行性。这将是英国和世界上BD-RIS的第一个项目。 To put together this revolutionary BD-RIS in a credible fashion, this project focuses on 1) developing physical and electromagnetic compliant models for BD-RIS, 2) conceiving new BD-RIS architecture, control, optimization, and signal processing, 3) inventing new wireless systems paradigms and applications enabled by BD-RIS, 4) demonstrating the feasibility of BD-RIS through prototyping and experimentation.The project demands a strong and微波理论，优化，多安德纳信号处理，无线通信，机器学习的跨学科记录，以及在一个独特的研究小组中进行的理论和实践技能以及该地区已建立的往绩记录。有了上述和鉴于该主题的新颖性和独创性，研究成果将具有相当大的价值，可以改变无线网络的未来，并使行业对6G的BD-RIS开发以及在6G中提高英国的研究概况，使该行业有了新的和及时的了解。它的成功将从根本上改变无线电访问网络的设计，对标准化产生巨大影响，并在许多涉及未来通信，权力和传感网络的领域中的应用。