Results 11 to 20 of about 48,136 (224)
Survey of Large-Scale MIMO Systems [PDF]
IEEE Communications Surveys & Tutorials, 2015 The escalating teletraffic growth imposed by the proliferation of smartphones and tablet computers outstrips the capacity increase of wireless communications networks. Furthermore, it results in substantially increased carbon dioxide emissions. As a powerful countermeasure, in the case of full-rank channel matrices, MIMO techniques are potentially ...
Zheng, Kan +5 more
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Fifty Years of MIMO Detection: The Road to Large-Scale MIMOs [PDF]
IEEE Communications Surveys & Tutorials, 2015 The emerging massive/large-scale MIMO (LS-MIMO) systems relying on very large antenna arrays have become a hot topic of wireless communications. Compared to the LTE based 4G mobile communication system that allows for up to 8 antenna elements at the base station (BS), the LS-MIMO system entails an unprecedented number of antennas, say 100 or more, at ...
Yang, Shaoshi, Hanzo, Lajos
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Two-Stage LASSO ADMM Signal Detection Algorithm For Large Scale MIMO [PDF]
, 2018 This paper explores the benefit of using some of the machine learning techniques and Big data optimization tools in approximating maximum likelihood (ML) detection of Large Scale MIMO systems.
Al-Abbasi, Abubakr O. +3 more
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Near-Field Wideband Channel Estimation for Extremely Large-Scale MIMO [PDF]
Science China Information Sciences, 2022 Extremely large-scale multiple-input-multiple-output (XL-MIMO) at millimeter-wave (mmWave) and terahertz (THz) bands plays an important role in supporting extreme high beamforming gain as well as ultra-wideband spectrum resources. Unfortunately, accurate wideband XL-MIMO channel estimation suffers from the new challenge called as the near-field beam ...
Mingyao Cui, Linglong Dai
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Deployment Challenges for Large-Scale MIMO Communications [PDF]
International Journal of Antennas and Propagation, 2014 Ahmed Iyanda Sulyman +2 more
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Large Scale MIMO Analysis Using Enhanced LAMA [PDF]
Wireless Personal Communications, 2021 Abstract In this research work, a novel enhanced large scale multi-input multi-output (MIMO) approximate message passing (LAMA) based optimal data detection is proposed for large scale MIMO systems. Existing LAMA and sub-optimal detection techniques suffer from iteration complexity and performance loss in finite dimensional systems due to large
Hanumantharao Bitra +1 more
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Non-Stationarities in Extra-Large-Scale Massive MIMO [PDF]
IEEE Wireless Communications, 2020 Massive MIMO, a key technology for increasing area spectral efficiency in cellular systems, was developed assuming moderately sized apertures. In this paper, we argue that massive MIMO systems behave differently in large-scale regimes due to spatial non-stationarity.
De Carvalho, Elisabeth +4 more
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Results in Physics, 2023 In order to understand the signal detection design of large-scale MIMO physical layer spatial optical communication systems, the author proposes a research on signal detection of large-scale MIMO physical layer spatial optical communication systems based
Min Ma
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Wideband MIMO Antenna for 5G Base Station
Tạp chí Khoa học và Công nghệ, 2023 In this paper, we present a configuration of a wideband MIMO antenna array for 5G terminals. The single-element antenna has compact size, dual polarization, wide operating bandwidth covering the 5G N78 frequency band, and high isolation between the two ...
Hien Doan Thi Ngoc
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Benefits of Beamforming Training Scheme in Distributed Large-Scale MIMO Systems
IEEE Access, 2018 The downlink training yields rather modest performance gains due to the high degree of channel hardening effect in co-located large-scale multi-input multi-output (MIMO) systems. However, in distributed large-scale MIMO systems, the potential benefits of
Jiamin Li +3 more
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