Results 21 to 30 of about 7,184 (178)

On the Impact of Hardware Impairments on Massive MIMO [PDF]

open access: yes, 2014
Massive multi-user (MU) multiple-input multiple-output (MIMO) systems are one possible key technology for next generation wireless communication systems. Claims have been made that massive MU-MIMO will increase both the radiated energy efficiency as well
Athley, Fredrik   +8 more
core   +2 more sources

Distributed multi-user MIMO transmission using real-time sigma-delta-over-fiber for next generation fronthaul interface [PDF]

open access: yes, 2020
To achieve the massive device connectivity and high data rate demanded by 5G, wireless transmission with wider signal bandwidths and higher-order multiple-input multiple-output (MIMO) is inevitable. This work demonstrates a possible function split option
Bauwelinck, Johan   +7 more
core   +1 more source

IEEE 802.11ac MU-MIMO Wireless LAN cells with legacy clients [PDF]

open access: yes, 2017
We provide an empirical evaluation of an IEEE 802.11ac Wireless LocalArea Network (WLAN) cell with Multiple User Multiple Input MultipleOutput (MU-MIMO) technology.
Abu-Tair, Mamoun, Bhatti, Saleem Noel
core   +1 more source

Hypergraph Modeling and Approximation Algorithms for the Minimum Length Link Scheduling in Multiuser MIMO Networks

open access: yesJournal 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

MIMO Indoor Visible Light Communication System Based on Tomlinson Harashima Precoding [PDF]

open access: yesJisuanji gongcheng, 2017
Aiming at the problem that the multi-user MIMO indoor Visible Light Communication(VLC) system based on Tomlinson Harashima Precoding(THP) has high Bit Error Rate(BER) and low power utilization,this paper proposes a Multi-user MIMO(MU-MIMO) communication ...
ZHANG Yunyan,WANG Hui
doaj   +1 more source

Using OFDMA for MU-MIMO User Selection in 802.11ax-Based Wi-Fi Networks

open access: yesIEEE Access, 2019
Two innovative multi-user (MU) communication mechanisms, multi-user multi-input multi-output (MU-MIMO) and orthogonal frequency division multiple access (OFDMA), have recently attracted much attention as key technologies to boost the capabilities of 802 ...
Kyu-Haeng Lee
doaj   +1 more source

MmWave MU-MIMO for Aerial Networks [PDF]

open access: yes2018 15th International Symposium on Wireless Communication Systems (ISWCS), 2018
5 pages, 4 figures, accepted at ISWCS Special Session 7: Vehicle-to-Everything (V2X) Communications. Small correction to equation (9) that I noticed after publication.
Cuvelier, Travis, Heath Jr, Robert W.
openaire   +2 more sources

mmWave V2V Localization in MU-MIMO Hybrid Beamforming

open access: yesIEEE Open Journal of Vehicular Technology, 2022
Recent trends for vehicular localization in millimetre-wave (mmWave) channels include employing a combination of parameters such as angle of arrival (AOA), angle of departure (AOD), and time of arrival (TOA) of the transmitted/received signals.
Jaswinder Lota   +4 more
openaire   +3 more sources

User Oriented Transmit Antenna Selection in Massive Multi-User MIMO SDR Systems

open access: yesSensors, 2020
A transmit antenna selection (TxAS) aided multi-user multiple-input multiple-output (MU-MIMO) system is proposed for operating in the MIMO downlink channel environments, which shows significant improvement in terms of higher data rate when compared to ...
Shida Zhong   +6 more
doaj   +1 more source

Rate adaptation for 802.11 multiuser mimo networks [PDF]

open access: yes, 2012
In multiuser MIMO (MU-MIMO) networks, the optimal bit rate of a user is highly dynamic and changes from one packet to the next. This breaks traditional bit rate adaptation algorithms, which rely on recent history to predict the best bit rate for the next
Chen, Ming-Syan   +6 more
core   +1 more source

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