725 citations · 6.1k across the 252 of their papers we have counts for
25 papers · 1 filter
Clustering and Analysis of GPS Trajectory Data using Distance-based Features
Zann Koh, Yuren Zhou, Billy Pik Lik Lau +3
The proliferation of smartphones has accelerated mobility studies by largely increasing the type and volume of mobility data available. One such source of mobility data is from GPS…
Active 3D Double-RIS-Aided Multi-User Communications: Two-Timescale-Based Separate Channel Estimation via Bayesian Learning
Songjie Yang, Wanting Lyu, Yue Xiu +2
Double-reconfigurable intelligent surface (RIS) is a promising technique, achieving a substantial gain improvement compared to single-RIS techniques. However, in double-RIS-aided s…
A Universal Framework of Superimposed RIS-Phase Modulation for MISO Communication
Jiacheng Yao, Jindan Xu, Wei Xu +2
To fully exploit the additional dimension brought by reconfigurable intelligent surface (RIS), it is recently suggested by information theory that modulating information upon RIS p…
Robust Security Energy Efficiency Optimization for RIS-Aided Cell-Free Networks with Multiple Eavesdroppers
Wanming Hao, Junjie Li, Gangcan Sun +4
In this paper, we investigate the energy efficiency (EE) problem under reconfigurable intelligent surface (RIS)-aided secure cell-free networks, where multiple legitimate users and…
Column Generation for Optimization Problems in Communication Networks
Ziye Jia, Qihui Wu, Chao Dong +2
Numerous communication networks are emerging to serve the various demands and improve the quality of service. Heterogeneous users have different requirements on quality metrics suc…
Energy-Efficient Cell-Free Network Assisted by Hybrid RISs
Wanting Lyu, Yue Xiu, Songjie Yang +2
In this letter, we investigate a cell-free network aided by hybrid reconfigurable intelligent surfaces (RISs), which consists of a mixture of passive and active elements that are c…