Results 121 to 130 of about 8,525,169 (240)

An Algorithm for Grant-Free Random Access in Cell-Free Massive MIMO

, 2020
Massive access is one of the main use cases of beyond 5G (B5G) wireless networks and massive MIMO is a key technology for supporting it. Prior works studied massive access in the co-located massive MIMO framework.
Ganesan, Unnikrishnan Kunnath,, Björnson, Emil,, Larsson, Erik G.,, Erik G. Larsson, Unnikrishnan Kunnath Ganesan, Emil Bjornson   +5 more
core   +1 more source

Spatial modulation for generalized MIMO: challenges, opportunities and implementation [PDF]

, 2013
A key challenge of future mobile communication research is to strike an attractive compromise between wireless network's area spectral efficiency and energy efficiency.
Renzo, Marco Di, Sugiura, S., Di Renzo, Marco, Haas, Harald, Hanzo, Lajos, Ghrayeb, Ali, Ali Ghrayeb, Marco Di Renzo, Sugiura, Shinya, Ghrayeb, A., Shinya Sugiura, Harald Haas, Hanzo, L., Lajos Hanzo   +13 more
core   +1 more source

Channel Map-Based Angle Domain Multiple Access for Cell-Free Massive MIMO Communications

IEEE Journal on Selected Topics in Signal Processing
Being aware of the channel and its properties is critical for coherent transmission in massive multiple-input multiple-output (M-MIMO) systems due to the large channel dimension in the space domain.
Shuai-Fei Chen, Cheng-Xiang Wang, Jun-Ling Li, Chen-Yen Huang, Heng-Tai Chang, Yu-Song Huang, Jie Huang, Yun-Fei Chen   +7 more
semanticscholar   +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, Giuseppe Durisi, Christoph Studer, Durisi, Giuseppe,, Studer, Christoph, Studer, Christoph,, Coldrey, Mikael, Jacobsson, Sven, Durisi, Giuseppe, Mikael Coldrey, Coldrey, Mikael,, Jacobsson, Sven,   +11 more
core   +1 more source

Joint User-Centric Clustering and Pilot Allocation for Scalable Cell-Free Massive MIMO System

International Journal of Technology
Cell-free massive multiple-input multiple-output (MIMO) is a promising technology where many access points (APs) cooperate to jointly serve user equipments (UEs) within the same time-frequency resource. However, the initial form of cell-free massive MIMO
Irma Zakia, Muhammad Brata
doaj   +1 more source

Multiple-Target Detection in Cell-Free Massive MIMO-Assisted ISAC [PDF]

IEEE Transactions on Wireless Communications
We propose a distributed implementation of integrated sensing and communication (ISAC) underpinned by a massive multiple input multiple output (CF-mMIMO) architecture without cells.
Mohamed Elfiatoure, M. Mohammadi, H. Ngo, Hyundong Shin, M. Matthaiou   +4 more
semanticscholar   +1 more source

Correction to 'Cell-Free Massive MIMO Versus Small Cells'

, 2020
We correct the achievable rates (42) and (47) for small cells in 'Cell-free massive MIMO versus small cells,' IEEE Trans. Wireless Commun., vol. 16, 2017.
Yang, Hong, Larsson, Erik G., Ashikhmin, Alexei, Ngo, Hien Quoc; id_orcid, Marzetta, Thomas L.   +4 more
core   +1 more source

Cell-Free Massive MIMO Power Consumption with Serial Front-Hauls

Telecom
Massive MIMO deployments have been traditionally based on dedicated links in the front-haul, i.e., between the central processing units and the Access Points (APs). Recently, cell-free massive Multiple-Input Multiple-Output (MIMO) systems based on serial
Danaisy Prado-Alvarez, Saúl Inca, David Martín-Sacristán, Jose F. Monserrat   +3 more
doaj   +1 more source

Cell-Free Massive MIMO-OFDM for High-Speed Train Communications

, 2022
Cell-free (CF) massive multiple-input multiple-output (MIMO) systems show great potentials in low-mobility scenarios, due to cell boundary disappearance and strong macro diversity.
Björnson, Emil,, Emil Bjornson, Zhetao Li, Jiakang Zheng, Jiayi Zhang, Zhang, Jiayi,, Li, Zhetao,, Zheng, Jiakang,, Bo Ai, Ai, Bo,   +9 more
core   +1 more source

Cell-Free Terahertz Massive MIMO: A Novel Paradigm Beyond Ultra-Massive MIMO

2024 IEEE International Mediterranean Conference on Communications and Networking (MeditCom)
The Fourth IEEE International Mediterranean Conference on Communications and Networking (IEEE MEDITCOM 2024), July 2024, Madrid ...
Wei Jiang 0002, Hans D. Schotten
openaire   +3 more sources