Results 21 to 30 of about 40,318 (262)

A Physical Layer Multicast Precoding and Grouping Scheme for Bandwidth Minimization

open access: yesIEEE Access, 2021
Physical layer multicasting exploits multiple antennas at the transmitter side to deliver a common message to a group of $K$ users. To this end, two formulations have been well addressed in the literature: i) the max-min-fair criterion, which maximizes
Francisco J. Martin-Vega   +3 more
doaj   +1 more source

DRL-Assisted Resource Allocation for NOMA-MEC Offloading with Hybrid SIC

open access: yesEntropy, 2021
Multi-access edge computing (MEC) and non-orthogonal multiple access (NOMA) are regarded as promising technologies to improve the computation capability and offloading efficiency of mobile devices in the sixth-generation (6G) mobile system.
Haodong Li, Fang Fang, Zhiguo Ding
doaj   +1 more source

Adaptive User Grouping Based on EVM Prediction for Efficient & Robust Massive MIMO in TDD

open access: yesIEEE Access, 2019
Massive multiple-input, multiple-output (Ma-MIMO) offers significant capacity improvements for sub-6GHz wireless access. Evaluating the practicalities for real-world deployments and identifying solutions is the next critical step in the roll-out of this ...
Wael Boukley Hasan   +4 more
doaj   +1 more source

User Grouping for Hybrid VLC/RF Networks With NOMA: A Coalitional Game Approach

open access: yesIEEE Access, 2019
Recently, visible light communication (VLC) networks have emerged as a promising alternative for indoor data access, due to high data rate, low implementation cost, and immunity to radio frequency (RF) interference.
Vasilis K. Papanikolaou   +2 more
doaj   +1 more source

Exploration of User Groups in VEXUS [PDF]

open access: yes2018 IEEE 34th International Conference on Data Engineering (ICDE), 2018
We introduce VEXUS, an interactive visualization framework for exploring user data to fulfill tasks such as finding a set of experts, forming discussion groups and analyzing collective behaviors. User data is characterized by a combination of demographics like age and occupation, and actions such as rating a movie, writing a paper, following a medical ...
Sihem Amer-Yahia   +4 more
openaire   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Cup‐Like Nuclei Is a Hallmark of DUX4/ERG Acute Lymphoblastic Leukemia and Reveals Cytoplasmic Mitochondria Accumulation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Cup‐like nuclei are a distinctive morphological feature observed in certain cases of acute lymphoblastic leukemia (ALL). We provide evidence that they characterize DUX4/ERG ALL independently of IKZF1 deletion and reveal marked mitochondrial accumulation in this ALL subset.
Chloé Arfeuille   +9 more
wiley   +1 more source

Dynamic User Grouping-Based NOMA Over Rayleigh Fading Channels

open access: yesIEEE Access, 2019
With the development of wireless communications and internet of things (IoT), non-orthogonal multiple access (NOMA) has been considered as one of effective schemes to meet the rapidly growing user access requirements.
Yue Yin   +4 more
doaj   +1 more source

Group Hug: Platform Competition With User-Groups [PDF]

open access: yesSSRN Electronic Journal, 2018
We consider platform competition for small users and a user group. One platform enjoys a quality advantage and the other benefits from favorable beliefs. We study whether the group mitigates the users’ coordination problem—i.e., joining a low-quality platform because they believe that other users would do the same.
Sarit Markovich, Yaron Yehezkel
openaire   +1 more source

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