Results 61 to 70 of about 1,857 (178)

Hybrid Precoding Design for Wireless Fading Channels

open access: yesApplied Sciences
Precoding techniques are widely used to eliminate interference between multiple user signals in a wireless fading channel environment. The linear MMSE precoding technique, one of the most widely used techniques so far, has low computational complexity ...
Bangwon Seo
doaj   +1 more source

Optimal Multiuser MIMO Linear Precoding with LMMSE Receiver

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the spatial division multiple access (SDMA) technique.
Shu Fang, Gang Wu, Shao-Qian Li
doaj   +2 more sources

Nonlinear robust precoding for coordinated multipoint transmission

open access: yesTongxin xuebao, 2015
A nonlinear robust precoding algorithm was proposed,which redesigned the feedback matrix,the forward matrix and the scaling matrix of the traditional tomlinson-harashima precoding algorithm based on the statistical characteristics of the downlink channel
Zhe-qi GU, Zhong-pei ZHANG
doaj   +2 more sources

A TDD-MIMO Transmission Scheme with Hybrid Precoding

open access: yes工程科学与技术, 2015
:In TDD-MIMO systems, the antenna correlation has a great impact on the system performance. In order to overcome this problem, a hybrid precoding scheme was proposed.
刘帅, 孙德春, 易克初, 杨宏
doaj  

Multi-Layer Downlink Precoding for Cloud-RAN Systems Using Full-Dimensional Massive MIMO

open access: yesIEEE Access, 2018
Full-dimensional (FD) massive multiple-input multiple-output (MIMO) has recently emerged as one of the physical layer enablers of 5G systems. Grounded on prior work on layered precoding, a novel framework for low-complexity multi-layer downlink precoding
Guillem Femenias, Felip Riera-Palou
doaj   +1 more source

A Large-Scale MIMO Precoding Algorithm Based on Iterative Interference Alignment

open access: yesCybernetics and Information Technologies, 2014
The performance of Large-scale MIMO system is degraded by Pilot Contamination. In order to reduce Pilot Contamination, a downlink precoding algorithm is put forward, based on Interference Alignment (IA).
Jiang Jing, Lv Wei
doaj   +1 more source

Design of fairness-driven RSMA-SDMA precoding

open access: yesTongxin xuebao, 2022
In view of the minimum user rate and system fairness when the transmit power was limited, a user access mode selection transmission strategy by joint rate-splitting multiple access (RSMA) and space division multiple access (SDMA) was proposed.The ...
Yanjing SUN   +3 more
doaj  

Transformer-Based Precoding for User-Centric Network Massive MIMO Optical Wireless Communications

open access: yesIEEE Access
Multiple-input multiple-output (MIMO) optical wireless communications (OWC) is a key technology to meet the growing demand for high data rates and reliable connectivity in sixth-generation (6G) wireless communications.
Zakir Ali   +5 more
doaj   +1 more source

Cascaded Deep Neural Network Based Adaptive Precoding for Distributed Massive MIMO Systems [PDF]

open access: yesRadioengineering
In time-division duplex (TDD) distributed large-scale multiple input multiple output (DM-MIMO) systems, the traditional downlink channel precoding method is used to resist inter-user interference (IUI).
L. J. Ge   +4 more
doaj  

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