From the 3 of 11 linked papers with an AI index.
11 papers
Superimposed Transmission for Cooperative Cellular and Cell-Free Massive MIMO Systems
Wei Jiang, Hans D. Schotten
The paper introduces a superimposed transmission method for cooperative cellular and cell‑free massive MIMO systems, where near users receive an extra data symbol that is decoded u…
Pinching-Antenna-Assisted Terahertz Communications: Modeling and Benchmarking
Wei Jiang, Hans D. Schotten
The paper presents an analytical model for terahertz pinching antenna systems (PASS) that accounts for waveguide losses, evanescent coupling, and terahertz-specific free‑space effe…
Switched-Feed Pinching-Antenna Systems for Wideband Terahertz Communications
Wei Jiang, Hans D. Schotten
The paper introduces a Switched-Feed Pinching-Antenna System (SF-PASS) for wideband terahertz communications, modeling waveguide losses, atmospheric effects, and noise, and shows i…
Distributed vs. Centralized Precoding in Cell-Free Systems: Impact of Realistic Per-AP Power Limits
Wei Jiang, Hans D. Schotten
In cell-free massive MIMO, centralized precoding is {theoretically known} to {remarkably} outperform its distributed counterparts, albeit {with} high implementation complexity. How…
A Heterogeneous Massive MIMO Technique for Uniform Service in Cellular Networks
Wei Jiang, Hans D. Schotten
Traditional cellular networks struggle with poor quality of service (QoS) for cell-edge users, while cell-free (CF) systems offer uniform QoS but incur high roll-out costs due to a…
Nonlinear Power Amplifier-Resilient Cell-Free Massive MIMO: A Joint Optimization Approach
Wei Jiang, Hans D. Schotten
This letter analyzes the effects of power amplifiers (PAs) on the downlink of cell-free massive MIMO systems. We model signal transmission incorporating nonlinear PA distortion and…