Results 11 to 20 of about 4,217,638 (167)

Design considerations of MIMO antennas for mobile phones [PDF]

, 2008
YesThe paper presents a new modeling and design concept of antennas using polar- ization diversity of 2 £ 2 and 3 £ 3 Multiple Input Multiple Outputs (MIMO) system that is proposed for future mobile handsets.
Abd-Alhameed, Raed, Usman, Muhammad, Excell, Peter S.   +2 more
core   +5 more sources

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

IET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source

Capacity limits of MIMO channels with co-channel interference [PDF]

, 2004
We consider both analytically and via Monte Carlo simulation the variation of the information theoretic capacity of multiple-input, multiple output (MIMO) communication systems.
Nix, AR, Webb, MW, Beach, MA, M. Beach, M. Webb, A. Nix   +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

A line-of-sight optimised MIMO architecture for outdoor environments [PDF]

, 2006
The authors present an investigation on the capacity of Line-of-Sight (LoS) optimised and conventional (narrow-spaced) Multiple-Input Multiple-Output (MIMO) communication systems in outdoor environments. Under a LoS scenario, the channel is normally rank
Sarris, I, Nix, AR, Andrew R. Nix, Ioannis Sarris, Andrew Nix   +4 more
core   +1 more source

Implementasi Sistem Komunikasi Nirkabel OFDM Berbasis Software Defined Radio (SDR)

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2018
Nowadays, wireless communication technology is developing rapidly. However, this technology still has some weaknesses, e.g. large bandwidth requirement and multipath fading. To overcome these weaknesses, MIMO OFDM technique is needed.
Ida Anisah, Hendy Briantoro, Ahmad Zainudin, Desy Intan Permatasari   +3 more
doaj   +1 more source

MIMO-SAR and the Orthogonality Confusion [PDF]

, 2012
This paper reviews radar architectures that employ multiple transmit and multiple receive channels to improve the performance of synthetic aperture radar (SAR) systems.
A. Patyuchenko, Laskowski, Piotr, M. Villano, Bordoni, Federica, A. Moreira, Krieger, Gerhard, J. Kim, Kim, Junghyo, Lopez-Dekker, Paco, Patyuchenko, Anton, F. Bordoni, Huber, Sigurd, S. Huber, Moreira, Alberto, T. Romme, Younis, Marwan, G. Krieger, P. Lopez-Dekker, Villano, Michealangelo, M. Younis, Rommel, Tobias, P. Laskowski   +21 more
core   +1 more source

Advances in MIMO Antenna Design for 5G: A Comprehensive Review

Sensors, 2023
Multiple-input multiple-output (MIMO) technology has emerged as a highly promising solution for wireless communication, offering an opportunity to overcome the limitations of traffic capacity in high-speed broadband wireless network access.
Tej Raj, Ranjan Mishra, Pradeep Kumar, Ankush Kapoor   +3 more
doaj   +1 more source

Performance enhancement of multiuser MIMO wireless communication systems [PDF]

, 2002
This paper describes a new approach to the problem of enhancing the performance of a multiuser multiple-input-multiple-output (MIMO) system for communication from one base station to many mobile stations in both frequency-flat and frequency-selective ...
Letaief, KB, Murch, RD, Wong, KK, Letaief, Khaled Ben, Wong, Kai Kit, Murch, Ross D.   +5 more
core   +1 more source

Capacity of Magnetic-Induction MIMO Communication for Wireless Underground Sensor Networks

International Journal of Distributed Sensor Networks, 2015
In underground sensor networks, electronic magnetic waves undergo severe fading due to the challenging environment. Magnetic-induction (MI) communication is a promising alternative physical layer technique for underground sensor networks.
Song Li, Yanjing Sun, Wenjuan Shi
doaj   +1 more source