Huahua Xiao

TL;DR: This paper considers a model that accounts for the intertwinement between the amplitude and phase response, and derive closed-form expressions for the outage probability and ergodic capacity of an RIS-assisted single-input single-output system over Rayleigh fading channels.

TL;DR: In this article, two practical residual neural networks, named single-scale enhanced deep residual (EDSR) and multi-scale EDSR, are proposed to obtain accurate CSI, which can strike a balance between the system complexity and estimation performance.

TL;DR: In this paper, an alternating direction method of multipliers (ADMM) based channel estimation method is proposed to improve the CSI estimation accuracy and reduce the training overhead in reconfigurable intelligent surfaces (RISs) aided millimeter wave communication systems.

TL;DR: In this article, a cooperative user association approach based on coalition formation game and a coalition formation algorithm was proposed to solve the challenging NP-hard problem in mmWave mobile relay systems where the MRs operate in the FD mode.

TL;DR: In this paper, a swarm intelligence-based method is proposed to optimize the phase shifts at the RIS elements under discrete constraints, and exact statistical characterizations of end-to-end signalto-noise plus distortion ratio and derive closed-form outage probability are derived.