Results 11 to 20 of about 15,536 (231)
Fundamental Bounds on MIMO Antennas [PDF]
IEEE Antennas and Wireless Propagation Letters, 2018 Antenna current optimization is often used to analyze the optimal performance of antennas. Antenna performance can be quantified in e.g., minimum Q-factor and efficiency. The performance of MIMO antennas is more involved and, in general, a single parameter is not sufficient to quantify it.
Ehrenborg, Casimir, Gustafsson, Mats
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Telecom, 2022 In this paper, we propose a hybrid beamforming architecture with constant phase shifters (CPSs) for uplink cell-free millimetre-wave (mm-Wave) massive multiple-input multiple-output (MIMO) systems based on exploiting antenna selection to reduce power ...
Abdulrahman Al Ayidh +4 more
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Massive MIMO With Dual-Polarized Antennas
IEEE Transactions on Wireless Communications, 2023 This paper considers a single-cell massive MIMO (multiple-input multiple-output) system with dual-polarized antennas at both the base station and users. We study a channel model that includes the key practical aspects that arise when utilizing dual-polarization: channel cross-polar discrimination (XPD) and cross-polar correlations (XPC) at the ...
Özgecan Özdogan, Emil Björnson
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Correlation in MIMO Antennas [PDF]
Electronics, 2020 Multiple-input multiple-output (MIMO) antennas are commonly evaluated by using the correlation coefficient. However, the correlation has several different definitions and calculation methods, and this misleads the real performance of the MIMO antennas.
Naoki Honma, Kentaro Murata
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Advancing 5G Connectivity: A Comprehensive Review of MIMO Antennas for 5G Applications
International Journal of Antennas and Propagation, 2023 The review focuses on the emergence of 5G wireless communication and the need for multiple-input multiple-output antennas to support high-speed communication systems.
Poonam Tiwari +5 more
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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 +3 more
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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 +4 more
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Dual-band MIMO coplanar waveguide-fed-slot antenna for 5G communications
Heliyon, 2021 This paper presents two new designs of MIMO dual band coplanar waveguide (CPW)-fed-slot antennas operating in the 5G frequency band (28 and 38 GHz). The first antenna is an XX MIMO antenna and the second antenna is an XY MIMO antenna.
Amjad Omar +3 more
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Antenna selection for MIMO-NOMA networks [PDF]
2017 IEEE International Conference on Communications (ICC), 2017 Submitted for possible conference ...
Yuehua Yu +4 more
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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
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