Results 61 to 70 of about 33,097 (233)

Applying large language models to extract information from crop trait prioritization studies

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 176-184, January 2026.
Investigation of farmers', consumers', and other stakeholders' trait preferences is vital for the adoption and impact of improved crop varieties. While qualitative research methods are known to increase the depth and scope of information from respondents, only 5% of previous trait preference studies used qualitative data in their analyses. We show that
Erin E. Farmer   +3 more
wiley   +1 more source

Three-Dimension Massive MIMO for Air-to-Ground Transmission: Location-Assisted Precoding and Impact of AoD Uncertainty

open access: yesIEEE Access, 2017
This paper investigates the 3-D massive multiple-input multiple-output (MIMO) for air-to-ground transmission, where an air platform (AP) is equipped with a 2-D rectangular antenna array and communicates with a number of user equipments (UEs) on the ...
Youyun Xu   +3 more
doaj   +1 more source

Linear Precoding with Low-Resolution DACs for Massive MU-MIMO-OFDM Downlink

open access: yes, 2019
We consider the downlink of a massive multiuser (MU) multiple-input multiple-output (MIMO) system in which the base station (BS) is equipped with low-resolution digital-to-analog converters (DACs). In contrast to most existing results, we assume that the
Coldrey, Mikael   +3 more
core   +1 more source

Robust Spectral and Energy Efficiency Tradeoff for RIS‐Aided Multi‐User Communication

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
In this work, an RIS‐aided multi‐user network with imperfect CSI is investigated. Correspondingly, we focus on balancing SE and EE through the collaborative design of the base station (BS)'s precoding matrix and the RIS's phase shifts, which consider the transmit power budget and the channel uncertainties constraints.
Xiandeng He, Yilin Wang, Shun Zhang
wiley   +1 more source

Multiuser precoding scheme and achievable rate analysis for massive MIMO system

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
We analyze the downlink multiuser precoding of massive multiple input multiple output (MIMO) system, where the base station (BS) has ideal channel state information (CSI) and adopts three types of different linear precoding schemes, i.e., maximum ratio ...
Weiqiang Tan   +5 more
doaj   +1 more source

Improved SIC-SVD Hybrid Precoding Algorithm for Indoor Sub-THz Systems

open access: yesIEEE Access, 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
Hang Gui   +4 more
doaj   +1 more source

Joint Optimization Algorithm for UAV Trajectory and Beamforming for NOMA‐Based Integrated Sensing and Communication (ISAC) Systems

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This paper investgates a unmanned aerial vehicle‐assisted non‐orthogonal multiple access‐integrated sensing and communication system, which fuses the UAV's echo signal and target position by employing the extended Kalman filter algorithum to achieve high‐precision prediction of the target trajectory.
Dongsheng Han, Zian Wang, Yan Wang
wiley   +1 more source

Energy-Efficient Hybrid Precoding With Low Complexity for mmWave Massive MIMO Systems

open access: yesIEEE Access, 2019
Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) utilizes large antenna arrays and is considered a promising technology for fifth-generation (5G) and beyond wireless communication systems.
Yang Liu   +5 more
doaj   +1 more source

Distributed Linear Precoding and User Selection in Coordinated Multicell Systems

open access: yes, 2015
In this manuscript we tackle the problem of semi-distributed user selection with distributed linear precoding for sum rate maximization in multiuser multicell systems.
Castañeda, Eduardo   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy