Results 31 to 40 of about 48,136 (224)

Achievable Rate of Rician Large-Scale MIMO Channels with Transceiver Hardware Impairments [PDF]

open access: yes, 2015
Transceiver hardware impairments (e.g., phase noise, in-phase/quadrature-phase (I/Q) imbalance, amplifier non-linearities, and quantization errors) have obvious degradation effects on the performance of wireless communications.
Björnson, Emil   +4 more
core   +2 more sources

On Bandwidth Efficiency Analysis for LS-MIMO With Hardware Impairments

open access: yesIEEE Access, 2017
Large scale multiple-input-multiple output (LS-MIMO) systems are one of the most promising candidates for 5th generation wireless communication networks.
Talha Younas   +2 more
doaj   +1 more source

Early results on deep unfolded conjugate gradient‐based large‐scale MIMO detection

open access: yesIET Communications, 2021
Deep learning (DL) is attracting considerable attention in the design of communication systems. This paper derives a deep unfolded conjugate gradient (CG) architecture for large‐scale multiple‐input multiple‐output detection.
Messaoud Ahmed Ouameur   +1 more
doaj   +1 more source

Channel Hardening-Exploiting Message Passing (CHEMP) Receiver in Large-Scale MIMO Systems [PDF]

open access: yes, 2014
In this paper, we propose a MIMO receiver algorithm that exploits {\em channel hardening} that occurs in large MIMO channels. Channel hardening refers to the phenomenon where the off-diagonal terms of the ${\bf H}^H{\bf H}$ matrix become increasingly ...
Chockalingam, A., Narasimhan, T. Lakshmi
core   +1 more source

Low-Complexity Transmit Antenna Selection in Large-Scale Spatial Modulation Systems

open access: yesInternational Journal of Antennas and Propagation, 2015
Transmit antenna selection (TAS) is an efficient way for improving the system performance of spatial modulation (SM) systems. However, in the case of large-scale multiple-input multiple-output (MIMO) configuration, the computational complexity of TAS in ...
Peng Wei   +4 more
doaj   +1 more source

Large System Analysis of Base Station Cooperation for Power Minimization [PDF]

open access: yes, 2015
This work focuses on a large-scale multi-cell multi-user MIMO system in which $L$ base stations (BSs) of $N$ antennas each communicate with $K$ single-antenna user equipments.
Couillet, Romain   +2 more
core   +8 more sources

A Large-Scale MIMO Precoding Algorithm Based on Iterative Interference Alignment

open access: yesCybernetics and Information Technologies, 2014
The performance of Large-scale MIMO system is degraded by Pilot Contamination. In order to reduce Pilot Contamination, a downlink precoding algorithm is put forward, based on Interference Alignment (IA).
Jiang Jing, Lv Wei
doaj   +1 more source

Multiuser Precoding Scheme Based on 3D Codebooks for Large-scale MIMO Systems [PDF]

open access: yesJisuanji gongcheng, 2017
For the co-channel interference in large-scale Multiple Input Multiple Output(MIMO) systems,this paper proposes a multiuser precoding scheme based on 3D codebooks.
ZENG Youcai,JING Xiaorong
doaj   +1 more source

Massive MIMO is a Reality -- What is Next? Five Promising Research Directions for Antenna Arrays

open access: yes, 2019
Massive MIMO (multiple-input multiple-output) is no longer a "wild" or "promising" concept for future cellular networks - in 2018 it became a reality.
Björnson, Emil   +4 more
core   +1 more source

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