Results 71 to 80 of about 7,667 (173)

Optical Neuromorphic Technology Catalyzes the Next‐Generation Mobile Communication Technology

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 11, November 2025.
Advancements in optical computing could revolutionize next‐generation wireless communication. The review highlights the role of photonic integrated circuits in implementing neural network operations and discusses their benefits, such as high computational density.
Xiaoxiong Song   +6 more
wiley   +1 more source

The Bidirectionality of Pragmatic Transfer in Chinese English Language Learners' Compliment Responses: The Effects of Second Language Proficiency

open access: yesLanguage Learning, Volume 75, Issue 3, Page 898-929, September 2025.
Abstract A handful of second language (L2) studies have explored bidirectional pragmatic transfer: forward pragmatic transfer—the influence of learners' first language (L1) on their L2—and reverse pragmatic transfer—the impact of learners' L2 on their L1.
Ying Zhang (she/her)
wiley   +1 more source

One-Bit Precoding and Constellation Range Design for Massive MIMO with QAM Signaling

open access: yes, 2018
The use of low-resolution digital-to-analog converters (DACs) for transmit precoding provides crucial energy efficiency advantage for massive multiple-input multiple-output (MIMO) implementation.
Liu, Ya-Feng, Sohrabi, Foad, Yu, Wei
core   +1 more source

Joint Subcarrier Allocation and Beamforming Optimization for IRS‐Assisted Multiuser MISO‐OFDMA Systems

open access: yesTransactions on Emerging Telecommunications Technologies, Volume 36, Issue 7, July 2025.
We introduce a novel model of an IRS‐assisted MU‐MISO‐OFDMA system. We aim to jointly optimize beamforming vectors, IRS reflection coefficients, and OFDM subcarrier allocation to maximize the overall sum rate. ABSTRACT In this article, we propose a novel resource allocation strategy for multiuser multiple‐input single‐output orthogonal frequency ...
Binh‐Minh Vu, Oh‐Soon Shin
wiley   +1 more source

Design of full-connected hybrid precoding based on an equivalent channel in millimeter-wave massive MIMO system

open access: yesDianxin kexue, 2021
In order to improve the performance of hybrid precoding scheme based on fully connected structure in millimeter-wave massive MIMO system, a hybrid precoding scheme based on an equivalent channel with two-step design method was proposed.Firstly, the ...
Haiyan CAO   +5 more
doaj   +2 more sources

Improved Hybrid Precoding Scheme for mmWave Large-Scale MIMO Systems

open access: yesIEEE Access, 2019
Due to the limited spectrum resources, communication utilizing millimeter wave (mmWave) has become a research hotspot, deemed to be an important technology of 5G, in which plenty of antennas can be deployed.
Yiqi Lu   +3 more
doaj   +1 more source

Channel Estimation and Hybrid Precoding for Millimeter Wave Cellular Systems

open access: yes, 2014
Millimeter wave (mmWave) cellular systems will enable gigabit-per-second data rates thanks to the large bandwidth available at mmWave frequencies. To realize sufficient link margin, mmWave systems will employ directional beamforming with large antenna ...
Alkhateeb, Ahmed   +3 more
core   +1 more source

Reconfigurable Intelligent Surfaces (RIS) and Their Role in Next‐Generation Wireless Networks: An Overview

open access: yesTransactions on Emerging Telecommunications Technologies, Volume 36, Issue 6, June 2025.
This paper explicitly reviews the state‐of‐the‐art RIS‐assisted wireless networks, especially open challenges relating to the B5G and 6G networks. This work presents an intensive study of recent research on RIS to provide an in‐depth understanding of the underlying principles surrounding RIS operations, composition, and effect on EM waves.
Chukwuemeka Nwufo   +2 more
wiley   +1 more source

Channel Estimation and Hybrid Precoding for Millimeter-Wave MIMO Systems: A Low-Complexity Overall Solution

open access: yesIEEE Access, 2017
To enable multi-stream transmission and increase the achievable rate, a hybrid digital/analog precoding structure is usually adopted in millimeter-wave (mmWave) MIMO systems.
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
doaj   +1 more source

Demographic Biases in Naturalistic Language Recordings in the CHILDES Database

open access: yesDevelopmental Science, Volume 28, Issue 3, May 2025.
ABSTRACT In recent years, the importance of estimating demographic biases in research has become apparent. Here, we provide a systematic review of the CHILDES database, the major source of naturalistic recordings of children's linguistic environment.
Camila Scaff   +3 more
wiley   +1 more source

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