Results 21 to 30 of about 41,333 (196)

Energy Efficiency and Spectral Efficiency Tradeoff in Massive MIMO Multicast Transmission with Statistical CSI

open access: yesEntropy, 2020
As the core technology of 5G mobile communication systems, massive multi-input multi-output (MIMO) can dramatically enhance the energy efficiency (EE), as well as the spectral efficiency (SE), which meets the requirements of new applications.
Bin Jiang   +5 more
doaj   +1 more source

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   +1 more source

Does Massive MIMO Fail in Ricean Channels? [PDF]

open access: yes, 2018
Massive multiple-input multiple-output (MIMO) is now making its way to the standardization exercise of future 5G networks. Yet, there are still fundamental questions pertaining to the robustness of massive MIMO against physically detrimental propagation ...
Matthaiou, Michail   +3 more
core   +2 more sources

Massive MIMO-NOMA Based MEC in Task Offloading for Delay Minimization

open access: yesIEEE Access, 2023
Mobile edge computing (MEC) has been considered a promising technology to reduce task offloading and computing delay by enabling mobile devices to offload their computation-intensive tasks. Non-orthogonal multiple access (NOMA) is regarded as a promising
Saadet Simay Yilmaz, Berna Ozbek
doaj   +1 more source

Wireless Power Transfer in Massive MIMO Aided HetNets with User Association [PDF]

open access: yes, 2016
This paper explores the potential of wireless power transfer (WPT) in massive multiple input multiple output (MIMO) aided heterogeneous networks (HetNets), where massive MIMO is applied in the macrocells, and users aim to harvest as much energy as ...
Jin, Shi   +4 more
core   +2 more sources

CSI Feedback Based on Deep Learning for Massive MIMO Systems

open access: yesIEEE Access, 2019
Aiming at the problem of high complexity and low feedback accuracy of existing channel state information (CSI) feedback algorithms for frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems, this paper proposes a CSI ...
Yong Liao   +3 more
doaj   +1 more source

Compressed Training Based Massive MIMO

open access: yesIEEE Transactions on Signal Processing, 2019
Massive multiple-input-multiple-output (MIMO) scheme promises high spectral efficiency through the employment of large scale antenna arrays in base stations. In time division duplexed implementations, co-channel mobile terminals transmit training information such that base stations can estimate and exploit channel state information to spatially ...
Baki Berkay Yilmaz, Alper T. Erdogan
openaire   +5 more sources

Orbital-Angular-Momentum Embedded Massive MIMO: Achieving Multiplicative Spectrum-Efficiency for mmWave Communications

open access: yesIEEE Access, 2018
By enabling very high bandwidth for radio communications, the millimeter-wave (mmWave), which can easily be integrated with massive-multiple-input-multiple-output (massive-MIMO) due to small antenna size, has been attracting growing attention as a ...
Wenchi Cheng   +4 more
doaj   +1 more source

On the Impact of Hardware Impairments on Massive MIMO [PDF]

open access: yes, 2014
Massive multi-user (MU) multiple-input multiple-output (MIMO) systems are one possible key technology for next generation wireless communication systems. Claims have been made that massive MU-MIMO will increase both the radiated energy efficiency as well
Athley, Fredrik   +8 more
core   +2 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   +3 more sources

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