Results 61 to 70 of about 1,265,987 (202)

Digital and analog hybrid precoding technology combined with V-BLAST in multi-user massive MIMO system

open access: yesDianxin kexue, 2016
In the massive MIMO system, the only full digital baseband precoding(FD-BP)scheme(such as full complexity zero forcing)requires the same number of radio frequency(RF)chains as the number of antenna elements, which leads to extreme high hardware cost, the
Shuai ZHANG   +3 more
doaj   +2 more sources

Generalised vector precoding design based on the MBER criterion for multiuser transmission

open access: yes, 2010
A generalised vector precoding (VP) design based on the minimum bit error rate (MBER) criterion is proposed for multiuser transmission in the downlink of a multiuser system where the base station (BS) equipped with multiple transmit antennas communicates
Chen, Sheng, Hanzo, Lajos, Yao, Wang
core   +2 more sources

Low-Complexity Incremental Search-Aided Hybrid Precoding and Combining for Massive MIMO Systems

open access: yesIEEE Access, 2020
The hybrid precoding and combining algorithms for mmWave massive multiple-input multiple-output (MIMO) systems must consider the trade-off between the complexity and performance of the system. Unfortunately, because of the unit-norm constraint imposed by
Eduard E. Bahingayi, Kyungchun Lee
doaj   +1 more source

Evaluation of multi‐user multiple‐input multiple‐output digital beamforming algorithms in B5G/6G low Earth orbit satellite systems

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 17-33, January/February 2026.
In this paper, we investigate the application of signal‐to‐leakage‐plus‐noise ratio (SLNR) beamforming to low Earth orbit non‐terrestrial networks. The SLNR criterion aims at maximizing the received desired signal power for each user while minimizing the overall interference power caused by each user to all other co‐channel receivers. We show that such
M. Rabih Dakkak   +3 more
wiley   +1 more source

Energy-Efficient Hybrid Precoding Design for Millimeter-Wave Massive MIMO Systems Via Coordinate Update Algorithms

open access: yesIEEE Access, 2018
This paper considers an energy-efficient, hybrid digital, and analog precoding design problem in millimeter-wave massive multiple-input multiple-output systems, in which the analog precoder is realized with a small number of energy-efficient switches and
Jung-Chieh Chen
doaj   +1 more source

Joint Decision‐Making for UAV Deployment and Computational Offloading Optimized for Energy Consumption and Latency in Space‐Air‐Ground Integrated Networks

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
Within the framework of integrated space‐air‐ground edge computing networks, this paper investigates the joint optimization of task allocation, user‐UAV association, UAV deployment, and computation resource allocation between UAVs and the LEO satellite.
Tengda Huang, Tao Hu, Di Wu, Wenzhi Zhao
wiley   +1 more source

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

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

open access: yesIET 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   +5 more
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

Robust Hybrid Precoding for Interference Exploitation in Massive Mimo Systems [PDF]

open access: yes, 2020
In this paper, we consider a multiuser massive MIMO system with hybrid analog-digital precoding architecture. The phase shifters in the hybrid precoding architecture are assumed to be imperfect, where the true values of both phase and magnitude of the ...
Hegde, G, Pesavento, M, Masouros, C
core   +2 more sources

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