Results 71 to 80 of about 50,793 (224)
IEEE Access, 2020 For massive multiple-input multiple-output (MIMO) systems, linear precoding is preferable to nonlinear precoding for better performance-complexity trade-off.
Qian Deng +5 more
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Sum Rates, Rate Allocation, and User Scheduling for Multi-User MIMO Vector Perturbation Precoding
, 2009 This paper considers the multiuser multiple-input multiple-output (MIMO) broadcast channel. We consider the case where the multiple transmit antennas are used to deliver independent data streams to multiple users via vector perturbation.
Collings, Iain B. +3 more
core +1 more source
Large System Analysis of Linear Precoding in Correlated MISO Broadcast Channels under Limited Feedback [PDF]
, 2012 In this paper, we study the sum rate performance of zero-forcing (ZF) and regularized ZF (RZF) precoding in large MISO broadcast systems under the assumptions of imperfect channel state information at the transmitter and per-user channel transmit ...
Couillet, Romain +3 more
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Performance Analysis of Precoding Based on Massive MIMO System
MATEC Web of Conferences, 2015 In order to improve the system performance, the authors consider a single-cell multiuser Massive MIMO downlink time-division duplex (TDD) system for the imperfect channel state information (CSI).
Li Yi, Wang Junxuan, Gao Zhenzhen
doaj +1 more source
Confidential communications technique based on message block precoder in multi-user MIMO systems
Tongxin xuebao, 2012 For confidential communications in a multi-user MIMO wiretap channel,though no information regarding the illegitimate receiver was presumed at the transmitter,an artificial interference and a precoding technique based on message block were proposed ...
Yao ZHU +3 more
doaj +2 more sources
Low Complexity Hybrid Precoding for Broadband mmWave Massive MIMO Systems
Advances in Electrical and Computer Engineering, 2018 Hybrid precoding becomes a candidate for Millimeter wave (mmWave) massive MIMO (Multiple-Input and Multiple-Output) systems because it can extremely reduce power consumption and high costs.
HUANG, Y., LIU, C., SONG, Y.
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A low complexity precoding based on weighted two diagonal iteration in massive MIMO system
Dianxin kexue, 2018 In massive MIMO systems,with the increase of the number of users and antennas,the complexity of the downlink zero forcing (ZF) precoding increases due to the existence of large matrix inversion.In order to reduce the complexity,an improved weighted two ...
Haiyan CAO +4 more
doaj +2 more sources
A General Hybrid Precoding Method for mmWave Massive MIMO Systems [PDF]
Radioengineering, 2019 Recently, hybrid precoding architectures have been proposed for the purpose of practical implementation of massive Multiple-Input Multiple-Output (MIMO) systems in the Fifth Generation (5G) networks.
Y. Xie, B. Li, Z. Yan, J. Fan, M. Yang
doaj
User Assignment in C-RAN Systems: Algorithms and Bounds
, 2018 In this work, we investigate the problem of mitigating interference between so called antenna domains of a cloud radio access network (C-RAN). In contrast to previous work, we turn to an approach utilizing primarily the optimal assignment of users to ...
Ghauch, Hadi +5 more
core +3 more sources
Digital Communications and Networks, 2019 Massive Multiple Input Multiple Output (MIMO) has been considered as an emerging technology to enhance the spectral and energy efficiency for the upcoming wireless communication systems.
Kishan Neupane, Rami J. Haddad
doaj +1 more source