Spatially Selective Reconfigurable Intelligent Surfaces Through Element Permutation

no code implementations • 6 Mar 2024 • Fredrik Rusek, Jose Flordelis, Kun Zhao, Erik Bengtsson, Olof Zander

The goal of this paper is to propose a RIS which \emph{only} reflects signals from the configured impinging direction.

Distributed and Scalable Uplink Processing for LIS: Algorithm, Architecture, and Design Trade-offs

no code implementations • 9 Dec 2020 • Jesus Rodriguez Sanchez, Fredrik Rusek, Ove Edfors, Liang Liu

The Large Intelligent Surface (LIS) is a promising technology in the areas of wireless communication, remote sensing and positioning.

Trade-offs in Decentralized Multi-Antenna Architectures: The WAX Decomposition

no code implementations • 1 Dec 2020 • Juan Vidal Alegría, Fredrik Rusek, Ove Edfors

To do so, we propose a general framework for centralized/decentralized architectures that can explore said interplay by adjusting some system parameters, namely the number of connections to the CPU (level of decentralization), and the number of multiplications/outputs per antenna (complexity/interconnection bandwidth).

Processing Distribution and Architecture Tradeoff for Large Intelligent Surface Implementation

no code implementations • 14 Jan 2020 • Jesus Rodriguez Sanchez, Ove Edfors, Fredrik Rusek, Liang Liu

The Large Intelligent Surface (LIS) concept has emerged recently as a new paradigm for wireless communication, remote sensing and positioning.