Results 41 to 50 of about 1,408 (177)
Improved SIC-SVD Hybrid Precoding Algorithm for Indoor Sub-THz Systems
, 2023 Emerging terahertz (THz) communication will become the main way of wireless communication in the future, it will also use hybrid precoding which combines analog and digital hybrid precoding like millimeter wave communication systems, to reduce the system
Yingjing Qian +4 more
core +1 more source
IET Communications, Volume 20, Issue 1, January/December 2026.This research proposes a Regularised Hyperparameter Bilevel Optimisation with Continual Learning‐based Deep Neural Network (RHBO‐CLDNN) for beamforming in an Ultra‐Wide Band (UWB) system. The RHBO ensures the hyperparameter efficiency at both upper and lower levels, which allows DNN to fine‐tune the unique characteristics of the UWB system, which leads
Pradeep Kumar Siddanna +2 more
wiley +1 more source
Hybrid LISA Precoding for Multiuser Millimeter-Wave Communications [PDF]
IEEE Transactions on Wireless Communications, 2018 Millimeter-wave (mmWave) communications plays an important role for future cellular networks because of the vast amount of spectrum available in the underutilized mmWave frequency bands. To overcome the huge free space omnidirectional path loss in those frequency bands, the deployment of a very large number of antenna elements at the base station is ...
Wolfgang Utschick +3 more
openaire +2 more sources
IET Communications, Volume 20, Issue 1, January/December 2026.This paper develops a near‐field three‐dimensional geometry‐based stochastic channel model for cooperative STAR‐RIS systems equipped with cylindrical transmit arrays at the base station. The proposed model captures spherical wavefront propagation effects and coupled azimuth‐elevation characteristics under realistic near‐field conditions.
Antwi Owusu Agyeman +5 more
wiley +1 more source
Alternating minimization for hybrid precoding in multiuser OFDM mmWave systems
, 2016 Hybrid precoding is a cost-effective approach to support directional transmissions for millimeter wave (mmWave) communications. While existing works on hybrid precoding mainly focus on single-user single-carrier transmission, in practice multicarrier ...
Xianghao Yu +5 more
core +1 more source
IET Communications, Volume 20, Issue 1, January/December 2026.ABSTRACT Millimeter‐wave (mmWave) Internet‐of‐Vehicles (IoV) communications rely on large antenna arrays to combat severe path loss and to provide high beamforming gains. However, practical vehicular deployments often adopt analog or hybrid beamforming with constant‐modulus constraints, leading to a highly non‐convex joint beamforming design problem ...
Haowen Zheng +4 more
wiley +1 more source
Decentralized Hybrid Precoding for Massive Mu-Mimo Isac
ICC 2025 - IEEE International Conference on CommunicationsIntegrated sensing and communication (ISAC) is a very promising technology designed to provide both high rate communication capabilities and sensing capabilities. However, in Massive Multi User Multiple-Input Multiple-Output (Massive MU MIMO-ISAC) systems, the dense user access creates a serious multi-user interference (MUI) problem, leading to ...
Jun Zhu +5 more
openaire +2 more sources
Hybrid Precoding for Multi-Group Multicasting in mmWave Systems [PDF]
2019 IEEE Global Communications Conference (GLOBECOM), 2019 Multicast beamforming is known to improve spectral efficiency. However, its benefits and challenges for hybrid precoders design in millimeter-wave (mmWave) systems remain understudied. To this end, this paper investigates the first joint design of hybrid transmit precoders (with an arbitrary number of finite-resolution phase shifts) and receive ...
Luis Fernando Abanto-Leon +2 more
openaire +2 more sources
PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM
Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam +5 more
wiley +1 more source
Journal of Tropical Medicine, Volume 2026, Issue 1, 2026.Background Rotavirus A remains a leading cause of acute gastroenteritis in children under 5 years of age across Asia, despite expanding vaccination programs. This study systematically synthesizes available evidence on rotavirus A detection among pediatric populations in Asian countries.
Ali A. Rabaan +21 more
wiley +1 more source