Rate Maximization for Downlink Multiuser Visible Light Communications
IEEE Access, 2016 We are interested in optimizing transmit beamforming for a visible light communication multiuser system such that the achievable sum rate is maximized. We first derive a closed-form sum rate expression via information-theoretic tools.
Hong Shen +3 more
doaj +1 more source
Overview of Mobile Communications in Colombia and Introduction to 5G. [PDF]
Sensors (Basel), 2023 Barrios-Ulloa A +6 more
europepmc +1 more source
A spatial model of the diffusion of mobile communications within the European Union [PDF]
Innovation diffusion studies have been popular. However, usually the focus has been on two dimensions: Either the innovation's diffusion is studied on the micro level by examining the individual's adoption of an innovation, or on the macro-level by ...
Frank, Lauri Dieter
core
Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
Belief Propagation Bit-Flip Decoder for Polar Codes
IEEE Access, 2019 The bit-flip method has been successfully applied to the successive cancellation (SC) decoder to improve the block error rate (BLER) performance for polar codes in the finite code length region.
Yongrun Yu +3 more
doaj +1 more source
Active Learning Methodology for Expert-Assisted Anomaly Detection in Mobile Communications. [PDF]
Sensors (Basel), 2022 Trujillo JA +5 more
europepmc +1 more source
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
Revolution or Evolution? Technical Requirements and Considerations towards 6G Mobile Communications. [PDF]
Sensors (Basel), 2022 Alraih S +6 more
europepmc +1 more source
Thin‐Film Thermal Sensors on Chitosan Substrates for Sustainable Transient Electronics
Advanced Electronic Materials, EarlyView.Fully transient thin‐film temperature sensors are realized on pure chitosan substrates using Mo‐based RTDs and a‐IGZO/Mo thermistors. The devices exhibit high sensitivity, mechanical flexibility, humidity‐aware operation, and complete dissolution in natural solvents.
Ahmed Rasheed +14 more
wiley +1 more source
Spectral Efficiency Analysis for Bidirectional Dynamic Network With Massive MIMO Under Imperfect CSI
IEEE Access, 2018 To cope with the exploding demand for higher data rate and the heavier asymmetry of downlink (DL) and uplink (UL) traffic, dynamic time-division duplex (DTDD) has been proposed, where the time resources can be adjusted dynamically between DL and UL ...
Qian Lv +3 more
doaj +1 more source