Results 21 to 30 of about 21,532,810 (248)

Multiple Access Chua Chaotic Communication system using Real Orthogonal Matrix Approach [PDF]

Engineering and Technology Journal, 2018
An alternative to traditional Pseudo-Noise (PN)-Sequences, one-dimension (1D) orthogonal chaotic map sequences, and three dimensional (3D) continuous chaotic systems (x,y,z) are generated by orthonormal Gram-Schmidt process. A new Orthogonal Chua Chaotic
Ali Radhi
doaj   +1 more source

Joint time and power allocation for uplink cooperative non-orthogonal multiple access based massive machine-type communication Network

International Journal of Distributed Sensor Networks, 2018
Non-orthogonal multiple access is an essential promising solution to support large-scale connectivity required by massive machine-type communication scenario defined in the fifth generation (5G) mobile communication system.
Shujun Han, Xiaodong Xu, Litong Zhao, Xiaofeng Tao   +3 more
doaj   +1 more source

A downlink non-orthogonal multiple access scheme having physical layer security

EURASIP Journal on Wireless Communications and Networking, 2018
In recent years, the standardization for the fifth generation (5G) mobile communication systems has been actively discussed, and it is expected that a large number of wireless communication terminals, and beyond, in the current systems are accommodated ...
Naoto Horiike, Eiji Okamoto, Tetsuya Yamamoto   +2 more
doaj   +1 more source

A Tutorial on Decoding Techniques of Sparse Code Multiple Access [PDF]

, 2022
Sparse Code Multiple Access (SCMA) is a disruptive code-domain non-orthogonalmultiple access (NOMA) scheme to enable \color{black}future massivemachine-type communication networks.
Chaturvedi, Saumya, Liu, Zilong, Bohara, Vivek Ashok, Srivastava, Anand, Xiao, Pei, Vivek Ashok Bohara, Zilong Liu, Pei Xiao, Saumya Chaturvedi, Anand Srivastava   +9 more
core   +1 more source

Two-User Near-Field IRS-Assisted Communication: Codebook Design and Multiple Access

IEEE Open Journal of the Communications Society
The reflection gain of intelligent reflecting surfaces (IRSs) scales with the number of unit cells (UCs). However, large IRSs exhibit an extended near-field (NF) range, which opens new opportunities when configuring the base station (BS) and the IRS.
Moritz Garkisch, Andre Scheder, Sebastian Lotter, Martin Vossiek, Robert Schober   +4 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source

Physical Channel Access (PCA): Time and Frequency Access Methods Simulation in NS-2 [PDF]

, 2013
We present an NS-2 module, Physical Channel Access (PCA), to simulate different access methods on a link shared with Multi-Frequency Time Division Multiple Access (MF-TDMA). This technique is widely used in various network technologies, such as satellite
Mehani, Olivier, Emmanuel Lochin, Bui, Huyen-Chi, Lacan, Jérôme, Lochin, Emmanuel, Huyen-Chi Bui, Jérôme Lacan, Olivier Mehani, José Radzik, Bui, Huyen Chi, Nicolas Kuhn, Radzik, José, Kuhn, Nicolas   +12 more
core   +1 more source

Language, Culture, and Cancer: Qualitative Insights Into Communication Disparities Among Spanish‐Speaking Caregivers of Children With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Latino children are projected to make up nearly one‐third of United States (US) children by 2060, and many of their caregivers speak Spanish. Prior survey research has documented communication difficulties for Spanish‐speaking caregivers of children with cancer, but contemporary qualitative data are limited.
Jenny Ruiz, Alejandra Curbelo‐Paz, Sonia Morales, Elizabeth Contreras, Amy Houtrow, Scott H. Maurer, Judy C. Chang   +6 more
wiley   +1 more source

Parents of Youth With Cancer Report on Their Psychosocial Care: iSTEPPP Survey Finds Alignment and Gaps With Standards

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families guide the provision of comprehensive psychosocial care. Parallel to research characterizing implementation of the Standards from the perspective of providers, this study examines implementation of the Standards from the perspective of parents of youth ...
Emily M. Pariseau, Kimberly Buff, Michele A. Scialla, Kimberly S. Canter, Lori Wiener, Victoria Sardi‐Brown, Julia B. Tager, Kamyar Arasteh, Anne E. Kazak   +8 more
wiley   +1 more source

New Gateways to Scholarly Communication through Open Access [PDF]

, 2010
The draumatic changes in 21st century has been occurred in the world of publication of scolarly communication.One of the phenomenais of Open Access Publishing Model.The open access movement is increasingly guiding the publishing practices of scholarly ...
Pradip, Joshi, Nikose, S.M.
core   +1 more source