Results 31 to 40 of about 4,925 (231)
Support Vector Machine-Based Transmit Antenna Allocation for Multiuser Communication Systems
Entropy, 2019 In this paper, a support vector machine (SVM) technique has been applied to an antenna allocation system with multiple antennas in multiuser downlink communications. Here, only the channel magnitude information is available at the transmitter.
Huifa Lin, Won-Yong Shin, Jingon Joung
doaj +1 more source
IEEE Photonics Journal, 2020 In multiuser optical wireless communications (OWC), the multiuser interference becomes significant as the number of users increases. This would lead to a poor quality of service with a low signal-to-interference-plus-noise-ratio (SINR) or even a failure ...
Sudhanshu Arya, Yeon Ho Chung
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Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network
Advanced Intelligent Discovery, EarlyView.A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia +3 more
wiley +1 more source
Iterative Multiuser Minimum Symbol Error Rate Beamforming Aided QAM Receiver
, 2008 A novel iterative soft interference cancellation (SIC) aided beamforming receiver is developed for high-throughput quadrature amplitude modulation systems.
Tan, S., Chen, Sheng, Hanzo, L.
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Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information [PDF]
, 2013 In this work, we propose a minimum mean squared error (MMSE) robust base station (BS) precoding strategy based on switched relaying (SR) processing and limited transmission of side information for interference suppression in the downlink of multiuser ...
Yang, Lie-Liang +7 more
core +1 more source
EURASIP Journal on Advances in Signal Processing, 2023 Exploiting generalized spatial modulation in massive MIMO system, we develop an efficient uplink multiuser detection scheme. Different from the maximum likelihood detection algorithm, the spatial and temporal data in the proposed detection scheme are ...
Wei-Chiang Wu
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Dasatinib and quercetin prevent alveolar bone loss in aged mice
Journal of Periodontology, EarlyView.Abstract Background Recent findings have associated alveolar bone loss (ABL) with the presence of senescent cells. Aging and the accumulation of senescent cells are associated with a pro‐inflammatory environment which may exacerbate tissue damage.
Luisa S. Battistelli +7 more
wiley +1 more source
Asymptotic Performance Analysis of Time-Frequency-Domain Spread MC DS-CDMA Systems Employing MMSE Multiuser Detection [PDF]
, 2010 In this contribution the asymptotic signal-to-interference-plus-noise ratio (SINR) performance of multicarrier direct-sequence code-division multiple-access systems employing time-frequency-domain spreading, i.e., of the TF/MC DS-CDMA systems, is studied,
Zhang, Youguang +5 more
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Novel Chaos Secure Communication System Based on Walsh Code
Journal of Electrical and Computer Engineering, 2015 A multiuser communication scheme which is a hybrid of Walsh code with DCSK and CDSK is proposed to improve low data transmission rate of Differential Chaos Shift Keying (DCSK), poor bit error ratio (BER) performance of Correlation Delay Shift Keying ...
Gang Zhang, Niting Cui, Tianqi Zhang
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Entropy, 2017 We introduce a distributed protocol to achieve multiuser diversity in a multicell multiple-input multiple-output (MIMO) uplink network, referred to as a MIMO interfering multiple-access channel (IMAC).
Bang Chul Jung +3 more
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