Wireless communications are nowadays shifting to higher operation frequencies with the aim to meet the ever-increasing demand for bandwidth. While reconfigurable intelligent surfaces (RISs) are usually envisioned to restore the line-of-sight of blocked links and to efficiently counteract the increased pathloss, their functionalities can extend far beyond these basic operations. … [Read more...] about Perceptive, Resilient, and Efficient Networks: Programming the Wireless Environment with Reconfigurable Intelligent Surfaces
Wireless sensor networks
Reconfigurable Intelligent Surfaces for 6G: Emerging Hardware Architectures, Applications, and Open Challenges
Reconfigurable intelligent surfaces (RISs) are rapidly gaining prominence in the realm of 5G-advanced and predominantly 6G mobile networks, offering a revolutionary approach to optimizing wireless communications. This article delves into the intricate world of the RIS technology, exploring its diverse hardware architectures and the resulting versatile operating modes. These … [Read more...] about Reconfigurable Intelligent Surfaces for 6G: Emerging Hardware Architectures, Applications, and Open Challenges
Causal Reasoning: Charting a Revolutionary Course for Next-Generation AI-Native Wireless Networks
Despite the basic premise that next-generation wireless networks (e.g., 6G) will be artificial intelligence (AI)-native, to date, most existing efforts remain either qualitative or incremental extensions to existing “AI for wireless” paradigms. Indeed, creating AI-native wireless networks faces significant technical challenges due to the limitations of data-driven, … [Read more...] about Causal Reasoning: Charting a Revolutionary Course for Next-Generation AI-Native Wireless Networks
Hybrid Reconfigurable Intelligent Metasurfaces: Enabling Simultaneous Tunable Reflections and Sensing for 6G Wireless Communications
The latest discussions on upcoming 6G wireless communications are envisioning future networks as a unified communications, sensing, and computing platform. The recently conceived concept of the smart radio environment, enabled by reconfigurable intelligent surfaces (RISs), contributes toward this vision, offering programmable propagation of information-bearing signals. Typical … [Read more...] about Hybrid Reconfigurable Intelligent Metasurfaces: Enabling Simultaneous Tunable Reflections and Sensing for 6G Wireless Communications
Control Layer Security: A New Security Paradigm for Cooperative Autonomous Systems
Autonomous systems (ASs) often cooperate to ensure safe navigation. Embedded within the centralized or distributed coordination mechanisms are a set of observations, unobservable states, and control variables. Security of data transfer between ASs is crucial for safety, and both cryptography and physical layer security (PLS) methods have been used to secure communication … [Read more...] about Control Layer Security: A New Security Paradigm for Cooperative Autonomous Systems
