Results 51 to 60 of about 326,204 (277)

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

Survival for Children Diagnosed With Wilms Tumour (2012–2022) Registered in the UK and Ireland Improving Population Outcomes for Renal Tumours of Childhood (IMPORT) Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Improving Population Outcomes for Renal Tumours of childhood (IMPORT) is a prospective clinical observational study capturing detailed demographic and outcome data on children and young people diagnosed with renal tumours in the United Kingdom and the Republic of Ireland.
Naomi Ssenyonga   +56 more
wiley   +1 more source

Matching-Coalition Based Cluster Formation for D2D Multicast Content Sharing

open access: yesIEEE Access, 2019
Device-to-device (D2D) multicast content sharing has become a promising technology to improve the services within a local area. This paper investigates the problem of cluster formation (i.e., cluster head (CH) selection and user grouping) for D2D ...
Yan Wu   +5 more
doaj   +1 more source

The MedSupport Multilevel Intervention to Enhance Support for Pediatric Medication Adherence: Development and Feasibility Testing

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard   +8 more
wiley   +1 more source

Constructing Groupings by Use of STATISTICA Software Package

open access: yesСтатистика України, 2018
STATISTICA software package for statistical analysis incorporates a wide range of advanced statistical methods. Quite often they are preceded by aggregating statistical survey data, which main component is their grouping.
V. S. Fetisov
doaj   +1 more source

A Novel User Grouping in Phase Rotation Based Downlink NOMA

open access: yesIEEE Access, 2022
Non-orthogonal multiple access (NOMA) is a promising candidate beyond 5G and 6G to improve spectral efficiency by sharing the same resource block with other users.
Hye Yeong Lee, Soo Young Shin
doaj   +1 more source

Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA

open access: yes, 2007
This paper presents a generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink.
El-Hajjar, Mohammed   +3 more
core   +1 more source

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis   +13 more
wiley   +1 more source

Joint user grouping and antenna selection based massive MIMO beamforming

open access: yesDianxin kexue, 2016
In massive MIMO systems,when the number of users is larger as that of antennas at base station(BS),the various channels may be significantly different.A new zero-forcing beamformer design algorithm was proposed based on joint user grouping and antenna ...
Qian WANG   +3 more
doaj   +2 more sources

User Grouping and Pilot Allocation for Spatially Correlated Massive MIMO Systems

open access: yesIEEE Access, 2018
This paper proposes a novel approach to deal with pilot contamination for spatially correlated massive multiple-input multiple-output (MIMO) systems with insufficient pilots.
Pengxiang Li   +3 more
doaj   +1 more source

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