48 citations · 52 across the 8 of their papers we have counts for
8 papers
RIS-Assisted D-MIMO for Energy-Efficient 6G Indoor Networks
Akshay Vayal Parambath, Jose Flordelis, Venkatesh Tentu +4
We propose an alternating optimization framework for maximizing energy efficiency (EE) in reconfigurable intelligent surface (RIS) assisted distributed MIMO (D-MIMO) systems under…
Mix-and-Conquer: Beamforming Design with Interconnected RIS for Multi-User Networks
Sajjad Nassirpour, Naoki Kusashima, Jose Flordelis +1
We propose a new reconfigurable intelligent surface (RIS) structure, referred to as interconnected RIS (I-RIS), which allows the RIS elements to be interconnected and share the inc…
Spatially Selective Reconfigurable Intelligent Surfaces Through Element Permutation
Fredrik Rusek, Jose Flordelis, Kun Zhao +2
A standard reconfigurable intelligent surface (RIS) can be configured to reflect signals from an arbitrary impinging direction to an arbitrary outgoing direction. However, if a sig…
Channel Hardening in Massive MIMO: Model Parameters and Experimental Assessment
Sara Gunnarsson, José Flordelis, Liesbet Van der Perre +1
Reliability is becoming increasingly important for many applications envisioned for future wireless systems. A technology that could improve reliability in these systems is massive…
Massive MIMO Extensions to the COST 2100 Channel Model: Modeling and Validation
Jose Flordelis, Xuhong Li, Ove Edfors +1
To enable realistic studies of massive multiple-input multiple-output systems, the COST 2100 channel model is extended based on measurements. First, the concept of a base station-s…
Channel Hardening in Massive MIMO - A Measurement Based Analysis
Sara Gunnarsson, Jose Flordelis, Liesbet Van der Perre +1
Wireless-controlled robots, cars and other critical applications are in need of technologies that offer high reliability and low latency. Massive MIMO, Multiple-Input Multiple-Outp…
Unmanned Aerial Vehicle Assisted Cellular Communication
Sha Hu, Jose Flordelis, Fredrik Rusek +1
In this paper, we consider unmanned aerial vehicles (UAVs) assisted cellular communication system, where UAVs can be used as amplify-and-forward (AF) relays. The effective channel…
Massive MIMO Performance - TDD Versus FDD: What Do Measurements Say?
Jose Flordelis, Fredrik Rusek, Fredrik Tufvesson +2
Downlink beamforming in Massive MIMO either relies on uplink pilot measurements - exploiting reciprocity and TDD operation, or on the use of a predetermined grid of beams with user…