Results 91 to 100 of about 12,682 (210)

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

Initial results on an MMSE precoding and equalisation approach to MIMO PLC channels [PDF]

open access: yes, 2011
This paper addresses some initial experiments using polynomial matrix decompositions to construct MMSE precoders and equalisers for MIMO power line communications (PLC) channels.
Weiss, Stephan   +4 more
core   +2 more sources

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

On the performance of SU-MIMO and MU-MIMO in 3GPP LTE downlink [PDF]

open access: yes, 2009
LTE (Long Term Evolution) is a next major step in mobile radio communications, and will be introduced as Release 8 in the 3rd Generation Partnership Project (3GPP). The new evolution aims to reduce delays, improve spectrum flexibility and reduce cost for
Beh, KC   +5 more
core   +1 more source

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  

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

Secrecy capacity enhancement with distributed precoding in multirelay wiretap systems

open access: yes, 2013
The secrecy capacity of relay communications is investigated in this paper, where an eavesdropper is present. Distributed precoding through multiple relay nodes can be used to enhance the received signal power at the destination node and to mitigate the ...
Xiang, Wei   +4 more
core   +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  

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