Results 61 to 70 of about 824 (179)
Spatial Modulation Concept for Massive Multiuser MIMO Systems
International Journal of Antennas and Propagation, 2014 This paper presents the concept of spatial modulation (SM) scheme for massive multiuser MIMO (MU-MIMO) system. We consider a MU-MIMO system where K users, each equipped with multiple antennas, are jointly serviced by a multiantenna base station ...
Khaled M. Humadi +2 more
doaj +1 more source
Transactions on Emerging Telecommunications Technologies, Volume 36, Issue 6, June 2025.This paper explicitly reviews the state‐of‐the‐art RIS‐assisted wireless networks, especially open challenges relating to the B5G and 6G networks. This work presents an intensive study of recent research on RIS to provide an in‐depth understanding of the underlying principles surrounding RIS operations, composition, and effect on EM waves.
Chukwuemeka Nwufo +2 more
wiley +1 more source
EURASIP Journal on Wireless Communications and Networking, 2011 A relatively recent idea of extending the benefits of MIMO systems to multiuser scenarios seems promising in the context of achieving high data rates envisioned for future cellular standards after 3G (3rd Generation).
Kovács IstvánZ +10 more
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Physical layer security in satellite communication: State‐of‐the‐art and open problems
IET Communications, Volume 19, Issue 1, January/December 2025.This paper first classifies contemporary satellite communication networks into five domains and then analyse the use of PLS in each domain; these domains are hybrid satellite‐terrestrial networks, satellite‐based IoT, navigation satellite systems, FSO‐based satellites, and inter‐satellite communications.
Nora Abdelsalam +2 more
wiley +1 more source
Transmission Scheme with Limited Channel State Information Feedback for 3D MIMO System
International Journal of Antennas and Propagation, 2015 Three-dimensional (3D) multiple-input multiple-output (MIMO) system can exploit the spatial degree of freedom in vertical dimension and can significantly improve system performance compared with 2D transmission scheme.
Xing Li +4 more
doaj +1 more source
Channel Estimation for Indoor Terahertz UM‐MIMO: A Deep Learning Perspective for 6G Applications
IET Communications, Volume 19, Issue 1, January/December 2025.This paper introduces a deep learning‐based framework for channel estimation in terahertz (THz) ultra‐massive multiple‐input multiple‐output systems, combining fully connected neural network for linear estimation and connected neural network for non‐linear refinement.
Sakhshra Monga +3 more
wiley +1 more source
Innovative Channel Estimation Methods for Massive MIMO Using GAN Architectures
IET Communications, Volume 19, Issue 1, January/December 2025.This paper proposes a novel channel estimation framework for massive multiple‐input multiple‐output (MIMO) systems using conditional generative adversarial networks with a U‐Net‐based generator and sequential convolutional neural network discriminator.
Sakhshra Monga +5 more
wiley +1 more source
NOMA in multiuser MIMO systems with imperfect CSI
2017 IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2017 This paper considers the use of NOMA in multiuser MIMO systems in practical scenarios where CSI is acquired through pilot signaling. A new NOMA scheme that uses shared pilots is proposed. Achievable rate analysis is carried out for a pilot signaling scheme including both uplink and downlink pilots.
Hei Victor Cheng +2 more
openaire +2 more sources
Asymptotic Analysis in MIMO MRT/MRC Systems
EURASIP Journal on Wireless Communications and Networking, 2006 Through the analysis of the probability density function of the squared largest singular value of a complex Gaussian matrix at the origin and tail, we obtain two asymptotic results related to the multi-input multi-output (MIMO) maximum-ratio ...
Zhou Quan, Dai Huaiyu
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Journal of Applied Mathematics, 2013 This paper investigates the problem of the minimum length link scheduling (MLLS) in multiuser MIMO (MU-MIMO) networks. Generally, in the networks with MU-MIMO capability, the number of concurrent transmissions can be as large as that of antenna elements ...
Hu Shen +5 more
doaj +1 more source