Results 51 to 60 of about 441,425 (328)
IEEE Access, 2020 This paper focuses on the application of radio tomographic imaging in through-the-wall image reconstruction. By using the simple wireless communication devices, e.g., Wi-Fi cards, the whole building layout can be reconstructed with only the received ...
Qichang Guo +4 more
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An Efficient Interference-Aware Constrained Massive MIMO Beamforming for mm-Wave JSDM
IEEE Access, 2021 Low-complexity beamformer design with practical constraints is an attractive research area for hybrid analog/digital systems in mm-wave massive multiple-input multiple-output (MIMO).
Murat Bayraktar, Gokhan M. Guvensen
doaj +1 more source
Hybrid beamforming for single carrier mmWave MIMO systems
, 2019 Hybrid analog and digital beamforming (HBF) has been recognized as an attractive technique offering a tradeoff between hardware implementation limitation and system performance for future broadband millimeter wave (mmWave) communications.
Cong, Jiaqi, Lin, Tian, Zhu, Yu
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Distributed Space-Time Coding Based on Adjustable Code Matrices for Cooperative MIMO Relaying Systems [PDF]
, 2013 An adaptive distributed space-time coding (DSTC) scheme is proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receive filters and adjustable code matrices are considered subject to a power constraint with an amplify ...
de Lamare, R. C., Peng, T., Schmeink, A.
core +2 more sources
Scientific Reports, 2022 AbstractChirps are familiar in nature, have a built-in resistance to noise and interference, and are connected to a wide range of highly oscillatory processes. Detecting chirp oscillating patterns by traditional Fourier series is challenging because the chirp frequencies constantly change over time.
Omar T. Bafakeeh +9 more
openaire +3 more sources
Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity
Molecular Oncology, EarlyView.Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung +17 more
wiley +1 more source
Optimum Block Size in Separate Block Bootstrap to Estimate the Variance of Sample Mean for Lattice Data [PDF]
Journal of Sciences, Islamic Republic of Iran, 2009 The statistical analysis of spatial data is usually done under Gaussian assumption for the underlying random field model. When this assumption is not satisfied, block bootstrap methods can be used to analyze spatial data.
M. Mohammadzadeh
doaj
Optimal Subsampling for Large Sample Logistic Regression [PDF]
Journal of the American Statistical Association, 2017 For massive data, the family of subsampling algorithms is popular to downsize the data volume and reduce computational burden. Existing studies focus on approximating the ordinary least-square estimate in linear regression, where statistical leverage ...
Haiying Wang, Rong Zhu, Ping Ma
semanticscholar +1 more source
FEBS Open Bio, EarlyView.Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah +8 more
wiley +1 more source
IEEE Photonics Journal, 2014 In this paper, we introduce the optimal signal constellation design (OSCD) in both 2-D and multidimensional cases, which is obtained by minimization of mean square error of optimal source distribution.
Tao Liu, Ivan B. Djordjevic
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