Results 41 to 50 of about 839,900 (174)

Integrated Sensing and Communication With Massive MIMO: A Unified Tensor Approach for Channel and Target Parameter Estimation [PDF]

open access: yesIEEE Transactions on Wireless Communications
Benefitting from the vast spatial degrees of freedom, the amalgamation of integrated sensing and communication (ISAC) and massive multiple-input multiple-output (MIMO) is expected to simultaneously improve spectral and energy efficiencies as well as the ...
Ruoyu Zhang   +6 more
semanticscholar   +1 more source

Power Scaling Laws and Near-Field Behaviors of Massive MIMO and Intelligent Reflecting Surfaces [PDF]

open access: yesIEEE Open Journal of the Communications Society, 2020
The use of large arrays might be the solution to the capacity problems in wireless communications. The signal-to-noise ratio (SNR) grows linearly with the number of array elements $N$ when using Massive MIMO receivers and half-duplex relays.
Emil Björnson, L. Sanguinetti
semanticscholar   +1 more source

Deep Learning-Based Channel Estimation for Beamspace mmWave Massive MIMO Systems [PDF]

open access: yesIEEE Wireless Communications Letters, 2018
Channel estimation is very challenging when the receiver is equipped with a limited number of radio-frequency (RF) chains in beamspace millimeter-wave massive multiple-input and multiple-output systems.
Hengtao He   +3 more
semanticscholar   +1 more source

Wideband Beamforming for Hybrid Massive MIMO Terahertz Communications

open access: yesIEEE Journal on Selected Areas in Communications, 2021
The combination of large bandwidth at terahertz (THz) and the large number of antennas in massive MIMO results in the non-negligible spatial wideband effect in time domain or the corresponding beam squint issue in frequency domain, which will cause ...
F. Gao   +4 more
semanticscholar   +1 more source

Ultradense Cell-Free Massive MIMO for 6G: Technical Overview and Open Questions [PDF]

open access: yesProceedings of the IEEE
Ultradense cell-free massive multiple-input–multiple-output (CF-MMIMO) has emerged as a promising technology expected to meet the future ubiquitous connectivity requirements and ever-growing data traffic demands in sixth generation (6G).
H. Ngo   +4 more
semanticscholar   +1 more source

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

LDPC Coded Massive MIMO Systems

open access: yesEntropy, 2019
We design a coded massive multiple-input multiple-output (MIMO) system using low-density parity-check (LDPC) codes and iterative joint detection and decoding (JDD) algorithm employing a low complexity detection.
Inho Hwang   +2 more
doaj   +1 more source

Integrated Communications and Localization for Massive MIMO LEO Satellite Systems [PDF]

open access: yesIEEE Transactions on Wireless Communications
Integrated communications and localization (ICAL) will play an important part in future sixth generation (6G) networks for the realization of Internet of Everything (IoE) to support both global communications and seamless localization.
Li You   +8 more
semanticscholar   +1 more source

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