Results 31 to 40 of about 724 (180)
Journal 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]
Jisuanji 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
IEEE 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
Mismatched Data Detection in Massive MU-MIMO [PDF]
IEEE Transactions on Signal Processing, 2021 ISSN:1941 ...
Charles Jeon +2 more
openaire +3 more sources
User Oriented Transmit Antenna Selection in Massive Multi-User MIMO SDR Systems
Sensors, 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
Signal processing in passive radar with multi-user MIMO-OFDM signal
EURASIP Journal on Advances in Signal Processing, 2022 In this paper, we propose a signal processing method in passive radar using the multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) signal as the illuminator of opportunity.
Xiaoyong Lyu, Baojin Liu, Wenbing Fan
doaj +1 more source
Uplink MU-MIMO in Asynchronous Wireless LANs [PDF]
Proceedings of the Eighteenth ACM International Symposium on Mobile Ad Hoc Networking and Computing, 2018 In wireless LANs (WLANs), network-wide time and frequency synchronization among user devices is widely regarded as a necessity for uplink MU-MIMO. Therefore, to enable uplink MU-MIMO in 802.11ax, dedicated MAC protocols (e.g., trigger frame and timing advance mechanism) have been proposed to synchronize user devices in the time and frequency domains ...
Huacheng Zeng +2 more
openaire +1 more source
Effect of Unpredictable Interference on MU-MIMO Systems in HetNet
IEEE Access, 2018 In this paper, we investigate the outage probability of a multiuser multiple-input multipleoutput (MU-MIMO) system in the heterogeneous network (HetNet) in the presence of unpredictable interference (UI) from coexisting ad hoc systems.
Seokwon Lee +4 more
doaj +1 more source
IEEE Access, 2021 Combining multi-user multiple-input and multiple-output (MU-MIMO) Tomlinson-Harashima precoding (THP) with semiorthogonal user selection (SUS) yields both space diversity and multi-user diversity benefits; however, it entails a significant computational ...
Hirofumi Suganuma +5 more
doaj +1 more source
Energies, 2017 Large-scale (LS) multi-user (MU) multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is considered to be a desirable signal transmission scheme because it can significantly improve the energy efficiency (EE) and spectral
Byung Moo Lee, Youngok Kim
doaj +1 more source