148 citations · 756 across the 59 of their papers we have counts for
26 papers · 1 filter
Weighted Sum-Rate Maximization for Reconfigurable Intelligent Surface Aided Wireless Networks
Huayan Guo, Ying-Chang Liang, Jie Chen +1
Reconfigurable intelligent surfaces (RIS) is a promising solution to build a programmable wireless environment via steering the incident signal in fully customizable ways with reco…
Intelligent Reflecting Surface-Assisted Cognitive Radio System
Jie Yuan, Ying-Chang Liang, Jingon Joung +2
Cognitive radio (CR) is an effective solution to improve the spectral efficiency (SE) of wireless communications by allowing the secondary users (SUs) to share spectrum with primar…
Intelligent Reflecting Surfaces: Physics, Propagation, and Pathloss Modeling
Özgecan Özdogan, Emil Björnson, Erik G. Larsson
Intelligent reflecting surfaces can improve the communication between a source and a destination. The surface contains metamaterial that is configured to "reflect" the incident wav…
Opinion Dynamics with Random Actions and a Stubborn Agent
Olle Abrahamsson, Danyo Danev, Erik G. Larsson
We study opinion dynamics in a social network with stubborn agents who influence their neighbors but who themselves always stick to their initial opinion. We consider first the wel…
Optimal Design of Energy-Efficient Cell-Free Massive MIMO: Joint Power Allocation and Load Balancing
Trinh Van Chien, Emil Björnson, Erik G. Larsson
A large-scale distributed antenna system that serves the users by coherent joint transmission is called Cell-free Massive MIMO (multiple input multiple output). For a given user se…
Dynamic Resource Allocation in Co-Located and Cell-Free Massive MIMO
Zheng Chen, Emil Björnson, Erik G. Larsson
In this paper, we study joint power control and scheduling in uplink massive multiple-input multiple-output (MIMO) systems with randomly arriving data traffic. We consider both co-…