Results 31 to 40 of about 2,697,618 (222)

Non-Orthogonal Unicast and Multicast Transmission for Massive MIMO With Statistical Channel State Information

IEEE Access, 2018
We investigate non-orthogonal unicast and multicast (NOUM) transmission for massive multiple-input multiple-output systems, where only statistical channel state information of all user terminals is available at the base station.
Li You, Jiayuan Xiong, Ke-Xin Li, Wenjin Wang, Xiqi Gao   +4 more
doaj   +1 more source

An Image Rejection Ku-Band CMOS Low Noise Amplifier With Bridged-Tee Band-Stop Filter

IEEE Access, 2020
For satellite communication applications, this paper presents an image rejection Ku-band low noise amplifier (LNA) in a 65-nm CMOS process for the Hartley receiver architecture.
Depeng Cheng, Lianming Li, Xu Wu, Bin Sheng   +3 more
doaj   +1 more source

Spectrum-Efficient Coherent Photonic Terahertz Transmission System Based on Subcarrier Multiplexing With Offset Quadrature Amplitude Modulation

IEEE Photonics Journal
To overcome the spectral efficiency (SE) limitations of conventional subcarrier multiplexing (SCM) caused by guard bands, a spectrum-efficient coherent photonic terahertz (THz) transmission system based on SCM with offset quadrature amplitude modulation (
Zhuoxin Li, Jiao Zhang, Yutong Jiang, Siyu Zhu, Meng Liu, Jiaxuan Li, Ruizhe Xu, Xiaodong Wei, Shuang Gao, Junkai Mao, Min Zhu   +10 more
doaj   +1 more source

Indoor Positioning for Multiphotodiode Device Using Visible-Light Communications

IEEE Photonics Journal, 2016
With the widespread use of light-emitting diodes (LEDs) for lighting, their ability to support communications through visible light has become promising for various wireless applications.
Wei Xu, Jia Wang, Hong Shen, Hua Zhang, Xiaohu You   +4 more
doaj   +1 more source

Introduction to Special Issue “Mobile Communications and Novel Business Models” [PDF]

, 2021
With the ongoing introduction of 5G, the fifth generation of mobile communications technologies, the mobile communications sector is facing disruption in regulative, business and technology domains [...
Marja Matinmikko-Blue, Petri Ahokangas, Ahokangas, Petri, Matinmikko-Blue, Marja   +3 more
core   +1 more source

Automatic Lesion Morphometrics Reliably Predict Sensorimotor Recovery After Spinal Cord Injury: A Longitudinal, Multicenter Neuroimaging Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate automatic magnetic resonance imaging (MRI)‐derived lesion morphometrics against manual measurements and their prognostic value for characterizing distinct acute to chronic neurological recovery trajectories after spinal cord injury (SCI). Methods We studied a retrospective, multicenter cohort of cervical and thoracolumbar
Dario Pfyffer, Jan Valošek, Lynn Farner, Enamundram Naga Karthik, Gergely David, Norbert Weidner, Rainer Abel, Doris Maier, Armin Curt, Margret Hund‐Georgiadis, Mirko Aach, Michael Baumberger, Julien Cohen‐Adad, Patrick Freund, the Nogo Inhibition in Spinal Cord Injury Study Group, Rainer Abel, Kerstin Rehahn, Mirko Aach, Klaus Röhl, Norbert Weidner, Marion Saur, Nikolaus Weiskopf, Doris Maier, Andreas Badke, Margret Hund‐Georgiadis, Michael Baumberger, Armin Curt, Jesus Benito‐Penalva, Jiri Kriz   +28 more
wiley   +1 more source

A multi-dimensional hierarchical evaluation system for data quality in trustworthy AI

Journal of Big Data
Recently, the widespread adoption of artificial intelligence (AI) has given rise to a significant trust crisis, stemming from the persistent emergence of issues in practical applications.
Hui-Juan Zhang, Can-Can Chen, Peng Ran, Kai Yang, Quan-Chao Liu, Zhe-Yuan Sun, Jia Chen, Jia-Ke Chen   +7 more
doaj   +1 more source

Caregiver Perspectives on the Burden of Disease and Treatment in Uncontrolled Gout

Arthritis Care &Research, EarlyView.
Objective Uncontrolled gout (UG) refers to persistently elevated serum urate (SU) levels >6 mg/dL and ongoing gout symptoms despite use of urate‐lowering therapy (ULT). The objective of this study was to evaluate the burden associated with informal caregiving for individuals with UG.
Angelo Gaffo, Bhavisha Desai, Abiola Oladapo, Nana Kragh, Rebekah Zincavage, Brad Padilla, Naomi Schlesinger   +6 more
wiley   +1 more source

A rapid fingerprint positioning method based on deep convolutional neural network for MIMO-OFDM systems

Urban Lifeline
The combination of fingerprint positioning and 5G (the 5th Generation Mobile Communication Technology) offers broader application prospects for indoor positioning technology, but also brings challenges in real-time performance.
Chenlin He, Xiaojun Wang, Jiyu Jiao, Yuhua Huang, Chengpei Han, Yizhuo Zhang, Jianping Zhu   +6 more
doaj   +1 more source

UAV-Based Intelligent Sensing Over CF-mMIMO Communications: System Design and Experimental Results

IEEE Open Journal of the Communications Society
This paper presents an uncrewed aerial vehicle (UAV)-based intelligent sensing system designed to operate within a cell-free massive multiple-input multiple-output (CF-mMIMO) network, addressing key limitations in performing integrated sensing and ...
Jian Sun, Wei Shi, Jiacheng Yao, Wei Xu, Dongming Wang, Yang Cao   +5 more
doaj   +1 more source