Results 1 to 10 of about 52,785 (207)

Conjugate gradient-based soft-output detection and precoding in massive MIMO systems [PDF]

open access: green, 2014
Massive multiple-input multiple-output (MIMO) promises improved spectral efficiency, coverage, and range, compared to conventional (small-scale) MIMO wireless systems.
Bei Yin   +3 more
openalex   +3 more sources

On the matrix inversion approximation based on neumann series in massive MIMO systems [PDF]

open access: green, 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-
Dengkui Zhu, Boyu Li, Ping Liang
openalex   +3 more sources

Massive MIMO Performance Evaluation Based on Measured Propagation Data [PDF]

open access: green, 2015
Massive MIMO, also known as very-large MIMO or large-scale antenna systems, is a new technique that potentially can offer large network capacities in multi-user scenarios.
Xiang Gao   +3 more
openalex   +3 more sources

An exclusion zone for massive MIMO with underlay D2D communication [PDF]

open access: green, 2015
Fifth generation networks will incorporate a variety of new features in wireless networks such as data offloading, D2D communication, and Massive MIMO. Massive MIMO is specially appealing since it achieves huge gains while enabling simple processing like
Salah Eddine Hajri, Mohamad Assaad
openalex   +5 more sources

MIMO and Massive MIMO Transmitter Crosstalk [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2020
The effects of hardware-induced crosstalk in MIMO transmitters, subject to nonlinear power amplifier distortion, are considered in this paper. A methodology that provides tractable results and a clear understanding of the effects of crosstalk on transmitter performance is introduced and applied to different transmitter models.
Peter Handel, Daniel Ronnow
openaire   +2 more sources

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, EarlyView., 2023
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

Direct Localization for Massive MIMO [PDF]

open access: yesIEEE Transactions on Signal Processing, 2017
Large-scale MIMO systems are well known for their advantages in communications, but they also have the potential for providing very accurate localization thanks to their high angular resolution. A difficult problem arising indoors and outdoors is localizing users over multipath channels. Localization based on angle of arrival (AOA) generally involves a
Garcia, Nil   +4 more
openaire   +5 more sources

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

open access: yesIET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh   +4 more
wiley   +1 more source

On the convergence of massive MIMO systems [PDF]

open access: yes2014 IEEE International Conference on Communications (ICC), 2014
In this paper we examine convergence properties of massive MIMO systems with the aim of determining the number of antennas required for massive MIMO gains. We consider three characteristics of a channel matrix and study their asymptotic behaviour. Furthermore, we derive ZF SNR and MF SINR for a scenario of unequal receive powers.
Pawel A. Dmochowski   +3 more
openaire   +3 more sources

Special issue on Massive MIMO [PDF]

open access: yesJournal of Communications and Networks, 2013
Demand for wireless communications is projected to grow by more than a factor of forty or more over the next five years. A potential technology for meeting this demand is Massive MIMO (also called Large-Scale Antenna Systems, Large-Scale MIMO, ARGOS, Full-Dimension MIMO, or Hyper-MIMO), a form of multi-user multipleantenna wireless which promises ...
L. Marzetta, Thomas   +4 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy