Results 111 to 120 of about 1,722,156 (269)

Hyperparameter‐Free Maximum Versoria Criterion Based Channel‐State Acquisition for mmWave Hybrid MIMO With Hardware Impairments

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper addresses channel estimation in mmWave (millimetre wave) hybrid MIMO (multiple‐input multiple‐output) systems impaired by residual transceiver hardware nonidealities, modelled as additive non‐Gaussian noise via Bussgang decomposition. A hyperparameter‐free maximum Versoria criterion (MVC)‐based channel estimator is proposed, featuring a ...
Rangeet Mitra, Sandesh Jain, K. Venkateswaran, Rajat Kumar, Vimal Bhatia, Ondrej Krejcar   +5 more
wiley   +1 more source

Single-Carrier Modulation versus OFDM for Millimeter-Wave Wireless MIMO

, 2017
This paper presents results on the achievable spectral efficiency and on the energy efficiency for a wireless multiple-input-multiple-output (MIMO) link operating at millimeter wave frequencies (mmWave) in a typical 5G scenario.
Buzzi, Stefano, Colavolpe, Giulio, D'Andrea, Carmen, Foggi, Tommaso, Ugolini, Alessandro   +4 more
core   +1 more source

Hybrid-Beamforming-Based Millimeter-Wave Cellular Network Optimization

IEEE Journal on Selected Areas in Communications, 2017
Massive MIMO and millimeter-wave communication (mmWave) have recently emerged as two key technologies for building 5G wireless networks and beyond. To reconcile the conflict between the large antenna arrays and the limited amount of radio-frequency (RF) chains in mmWave systems, the so-called hybrid beamforming becomes a promising solution and has ...
Jia Liu, Elizabeth S. Bentley
openaire   +1 more source

Regularised Hyper Parameter Bi Level Optimisation With Continual Learning Based Deep Neural Network for Beamforming in Ultra‐Wide Band System

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, Bidare Divakarachari Parameshachari, Dharmanna Shivappa Lamani   +2 more
wiley   +1 more source

Hybrid MIMO Architectures for Millimeter Wave Communications: Phase Shifters or Switches?

, 2015
Hybrid analog/digital MIMO architectures were recently proposed as an alternative for fully-digitalprecoding in millimeter wave (mmWave) wireless communication systems.
Alkhateeb, Ahmed, González-Prelcic, Nuria, Heath Jr, Robert W., Méndez-Rial, Roi, Rusu, Cristian   +4 more
core   +1 more source

Hierarchical-Absolute Reciprocity Calibration for Millimeter-wave Hybrid Beamforming Systems [PDF]

, 2022
Rongjiang Nie, Li Chen, Yunfei Chen, Weidong Wang   +3 more
openalex   +1 more source

Communication‐Security Co‐Design for Federated Learning in Grant‐Free NOMA IoT Networks

IET Communications, Volume 20, Issue 1, January/December 2026.
This article presents SA‐PPO, a Security‐Aware Proximal Policy Optimisation framework for federated learning over grant‐free NOMA (non‐orthogonal multiple access) in IoT networks. By jointly optimising access control, resource allocation, and trust‐weighted aggregation using cross‐layer indicators, SA‐PPO enhances both communication reliability and ...
Emmanuel Atebawone, Kwame Opuni‐Boachie Obour Agyekum, James Dzisi Gadze, Kwasi Adu‐Boahen Opare, Owusu Agyeman Antwi, Robert Akromond   +5 more
wiley   +1 more source

A review of beamforming microstrip patch antenna array for future 5G/6G networks

Frontiers in Mechanical Engineering
With the increase in demand for high data rates and high bandwidth because of multiple users all over the globe, the technology has moved toward the next-generation of wireless communication.
Muhammad Asfar Saeed, Augustine O. Nwajana   +1 more
doaj   +1 more source

Exploiting Reconfigurable Intelligent Surfaces in Edge Caching: Joint Hybrid Beamforming and Content Placement Optimization [PDF]

, 2020
Yingyang Chen, Miaowen Wen, Ertuğrul Başar, Yik‐Chung Wu, Li Wang, Weiping Liu   +5 more
openalex   +1 more source

Collaborative Beamforming for Multi‐Target Localization Using Passive Anchors

Electronics Letters, Volume 62, Issue 1, January/December 2026.
A joint collaborative beamforming strategy for passive sensor network is proposed active sensors generate collaborative beam to power up the passive sensors and attain accurate self‐localization. ABSTRACT Using wireless passive sensor nodes as anchors is a cost‐effective way for localization system.
Xingjun Lai, Hongyuan Liu, Xiaofan Li, Yubin Zhao   +3 more
wiley   +1 more source