Backscatter and Reconfigurable Intelligent Surface-Empowered Wireless Communications in 6G [From the Guest Editors]

International audienceNow that the 5G mobile network system is rolling out worldwide, extensive research attention has shifted to the next technology, 6G, in academia and industry. Exciting new applications, such as multisensory extended reality applications, connected robotics and autonomous systems, and brain–computer interactions, will be supported by 6G communications. These pose new challenges through their data rate, latency, connectivity density, and energy efficiency requirements, which cannot not be satisfied by 5G