Results 41 to 50 of about 48,136 (224)

Cost-Efficient GPIP Processing for Large-Scale Multi-User MIMO Systems

open access: yesIEEE Access, 2023
This paper investigates a joint user selection, power allocation, and beamforming strategy for maximizing a weighted sum-spectral efficiency in a single-cell multi-user multiple-input multiple-output (MU-MIMO) system.
Seungsik Moon, Namyoon Lee, Youngjoo Lee
doaj   +1 more source

Fundamental Limits in Correlated Fading MIMO Broadcast Channels: Benefits of Transmit Correlation Diversity

open access: yes, 2014
We investigate asymptotic capacity limits of the Gaussian MIMO broadcast channel (BC) with spatially correlated fading to understand when and how much transmit correlation helps the capacity.
Nam, Junyoung
core   +1 more source

Performance analysis of large‐scale MIMO system for wireless backhaul network

open access: yesETRI Journal, 2018
In this paper, we present a performance analysis of large‐scale multi‐input multi‐output (MIMO) systems for wireless backhaul networks. We focus on fully connected N nodes in a wireless meshed and multi‐hop network topology.
Seokki Kim, Seungkwon Baek
doaj   +1 more source

Massive MIMO performance evaluation based on measured propagation data

open access: yes, 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.
Edfors, Ove   +3 more
core   +1 more source

Harmonized Cellular and Distributed Massive MIMO: Load Balancing and Scheduling

open access: yes, 2015
Multi-tier networks with large-array base stations (BSs) that are able to operate in the "massive MIMO" regime are envisioned to play a key role in meeting the exploding wireless traffic demands. Operated over small cells with reciprocity-based training,
Bursalioglu, Ozgun Y.   +2 more
core   +1 more source

Energy-Efficient Optimization for Wireless Information and Power Transfer in Large-Scale MIMO Systems Employing Energy Beamforming [PDF]

open access: yes, 2013
In this letter, we consider a large-scale multiple-input multiple-output (MIMO) system where the receiver should harvest energy from the transmitter by wireless power transfer to support its wireless information transmission.
Chen, Xianfu   +2 more
core   +1 more source

Channel Estimation for Extremely Large-Scale Massive MIMO Systems [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
Extremely large-scale massive multiple-input multiple-output (MIMO) has shown considerable potential in future mobile communications. However, the use of extremely large aperture arrays has led to near-field and spatial non-stationary channel conditions, which result in changes to transceiver design and channel state information that should be acquired.
Yu Han, Shi Jin, Chao-Kai Wen, Xiaoli Ma
openaire   +2 more sources

Research on low-complexity XL-MIMO wireless transmission design

open access: yesDianxin kexue, 2023
Extra-large scale MIMO (XL-MIMO) can meet the requirement of high spectral efficiency in 6G communication, but also faces the challenge caused by the increase in computational complexity.It is found that the unique spatial non-stationary characteristics ...
Ruirui SUN, Yu HAN, Shi JIN, Jue WANG
doaj   +2 more sources

Asymptotic analysis of downlink MIMO systems over Rician fading channels [PDF]

open access: yes, 2016
In this work, we focus on the ergodic sum rate in the downlink of a single-cell large-scale multi-user MIMO system in which the base station employs N antennas to communicate with $K$ single-antenna user equipments.
Abla Kammoun   +4 more
core   +5 more sources

Overview of Precoding Techniques for Massive MIMO

open access: yesIEEE Access, 2021
Massive multiple-input multiple-output (MIMO) is playing a crucial role in the fifth generation (5G) and beyond 5G (B5G) communication systems. Unfortunately, the complexity of massive MIMO systems is tremendously increased when a large number of ...
Mahmoud A. Albreem   +3 more
doaj   +1 more source

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