Results 41 to 50 of about 14,760 (220)
Channel estimation and signal detection with model-driven deep learning for massive multiuser MIMO-OFDM systems [PDF]
, 2023 The emerging fifth generation (5G) and beyond wireless systems raise requirements on improved coverage, lower latency, higher data rates, and energy efficiency. These improvements can be provided by massive Multiple-Input Multiple-Output (MIMO), which
Liu, Changjiang
core +1 more source
LDPC Coded Massive MIMO Systems
Entropy, 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
Massive MU-MIMO-OFDM Downlink with One-Bit DACs and Linear Precoding
, 2017 Massive multiuser (MU) multiple-input multiple- output (MIMO) is foreseen to be a key technology in future wireless communication systems. In this paper, we analyze the downlink performance of an orthogonal frequency division multiplexing (OFDM)-based ...
Sven Jacobsson +11 more
core +1 more source
IEEE Journal on Selected Areas in Communications, 2016 Motivated by the demand for energy-efficient communication solutions in the next generation cellular network, a mixed-ADC architecture for massive multiple input multiple output (MIMO) systems is proposed, which differs from previous works in that herein one-bit analog-to-digital converters (ADCs) partially replace the conventionally assumed high ...
Ning Liang, Wenyi Zhang 0001
openaire +2 more sources
The dynamic power allocation to maximize the achievable sum rate for massive MIMO‐NOMA systems
IET 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
Massive MIMO Combining with Switches [PDF]
IEEE Wireless Communications Letters, 2016 Massive multiple-input multiple-output (MIMO) is expected to play a central role in future wireless systems. The deployment of large antenna arrays at the base station and the mobile users offers multiplexing and beamforming gains that boost system spectral efficiency.
Ahmed Alkhateeb +3 more
openaire +2 more sources
Electronics LettersWith the accelerated deployment of 5G massive multi‐input multi‐output (MIMO)‐structured base stations (BSs), accurate and efficient testing of massive MIMO arrays is essential to ensure that the 5G massive MIMO antenna array can perform as expected. The
Xudong An +4 more
doaj +1 more source
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
Μελέτη και προσομοίωση τεχνικών Massive MIMO σε δίκτυα νέας γενιάς
, 2022 Το Massive multiple-input multiple-output (MIMO) είναι μια από τις πιο υποσχόμενες τεχνολογίες για την επόμενη γενιά ασύρματων δικτύων επικοινωνίας, επειδή έχει τη δυνατότητα να προσφέρει βελτιώσεις στη φασματική απόδοση (SE) και την ενεργειακή απόδοση ...
Θεοχαρίδης, Χρήστος
core
Finite-alphabet MMSE equalization for all-digital massive MU-MIMO mmWave communications
, 2020 We propose finite-alphabet equalization, a new paradigm that restricts the entries of the spatial equalization matrix to low-resolution numbers, enabling high-throughput, low-power, and low-cost hardware equalizers.
Goldstein, Tom +9 more
core +1 more source