Results 31 to 40 of about 41,333 (196)

Fundamentals of Massive MIMO [PDF]

open access: yes2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2016
Written by pioneers of the concept, this is the first complete guide to the physical and engineering principles of Massive MIMO. Assuming only a basic background in communications and statistical signal processing, it will guide readers through key topics in multi-cell systems such as propagation modeling, multiplexing and de-multiplexing, channel ...
Marzetta, Thomas L.   +3 more
openaire   +3 more sources

Research on I / Q Unbalanced Channel Reciprocity Calibration Algorithm in Massive MIMO System

open access: yesMATEC Web of Conferences, 2017
Massive MIMO system uses the transmitter channel state information (CSI) to preprocess the transmitted data, which can effectively reduce the interference and enhance the Massive MIMO system capacity.
Cui Jinming   +3 more
doaj   +1 more source

Deep Clustering-Based Codebook Design for Massive MIMO Systems

open access: yesIEEE Access, 2019
Deep learning (DL) can effectively handle explosive data and solve the complicated non-convex problems. Recently, it is used to reduce the overhead of channel state information (CSI) feedback and improve the performance of the limited feedback massive ...
Jing Jiang   +4 more
doaj   +1 more source

A Novel Performance Bound for Massive MIMO Enabled HetNets

open access: yesMathematics, 2023
Massive multiple-input and multiple-output (MIMO) networks with higher throughput rates, where a base station (BS) with a large-scale antenna array serves multiple users, have been widely employed in next-generation wireless communication test systems ...
Hao Li   +4 more
doaj   +1 more source

On the Matrix Inversion Approximation Based on Neumann Series in Massive MIMO Systems

open access: yes, 2015
Zero-Forcing (ZF) has been considered as one of the potential practical precoding and detection method for massive MIMO systems. One of the most important advantages of massive MIMO is the capability of supporting a large number of users in the same time-
Li, Boyu, Liang, Ping, Zhu, Dengkui
core   +1 more source

Energy-Efficient Load-Adaptive Massive MIMO [PDF]

open access: yes2015 IEEE Globecom Workshops (GC Wkshps), 2015
Massive MIMO is a promising technique to meet the exponential growth of global mobile data traffic demand. However, contrary to the current systems, energy consumption of next generation networks is required to be load adaptive as the network load varies significantly throughout the day.
Cavdar, Cicek   +4 more
openaire   +3 more sources

Massive MIMO Channel-Aware Decision Fusion [PDF]

open access: yesIEEE Transactions on Signal Processing, 2015
In this paper, we provide a study of channel-aware decision fusion (DF) over a “virtual” multiple-input multiple-output (MIMO) channel in the large-array regime at the DF center (DFC). The considered scenario takes into account channel estimation and inhomogeneous large-scale fading between the sensors and the DFC. The aim is the development of (widely)
CIUONZO D   +2 more
openaire   +5 more sources

Channel Hardening in Cell-Free and User-Centric Massive MIMO Networks With Spatially Correlated Ricean Fading

open access: yesIEEE Access, 2020
The irruption of the cell-free (CF) massive multiple-input multiple-output (MIMO) network topology has meant taking one step further the concept of massive MIMO as a means to provide uniform service in large coverage areas. A key property of massive MIMO
Alberto Alvarez Polegre   +3 more
doaj   +1 more source

Massive MIMO for Internet of Things (IoT) Connectivity

open access: yes, 2019
Massive MIMO is considered to be one of the key technologies in the emerging 5G systems, but also a concept applicable to other wireless systems. Exploiting the large number of degrees of freedom (DoFs) of massive MIMO essential for achieving high ...
Abrão, Taufik   +6 more
core   +1 more source

The dynamic power allocation to maximize the achievable sum rate for massive MIMO‐NOMA systems

open access: yesIET Communications, 2022
The demand of mobile networks and quality of service have recently increased to higher Spectral Efficiency (SE) or Energy Efficiency (EE) and massive connectivity for 5G wireless communications.
Zahra Amirifar, Jamshid Abouei
doaj   +1 more source

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