Results 71 to 80 of about 2,416 (202)

Analysis and Evaluation of Pattern Division Multiple Access Scheme Jointed with 5G Waveforms

open access: yesIEEE Access, 2019
Nonorthogonal multiple access (NOMA) techniques represent a key feature for 5G systems in order to increase multiple users' systems' capacity. In particular, we propose, for study, a pattern division multiple access (PDMA) technique, which defines a ...
Meriem Mhedhbi, Fouzia Elbahhar Boukour
doaj   +1 more source

Low Complexity Iterative Receiver With Lossless Information Transfer for Non-Binary LDPC Coded PDMA System

open access: yesIEEE Access, 2020
In this work, we first proposed a non-binary low-density parity-check (NB-LDPC) coded pattern division multiple access (PDMA) scheme with the order of the Galois field equal to the size of modulation alphabet which can avoid the symbol-to-bit or bit-to ...
Hanqing Ding   +6 more
doaj   +1 more source

Investigation on Evolving Single-Carrier NOMA Into Multi-Carrier NOMA in 5G

open access: yesIEEE Access, 2018
Non-orthogonal multiple access (NOMA) is one promising technology, which provides high system capacity, low latency, and massive connectivity, to address several challenges in the fifth-generation wireless systems. In this paper, we first reveal that the
Jie Zeng   +6 more
doaj   +1 more source

Leveraging Constraints for Innovation: New Product Development Essentials from the PDMA

open access: yes, 2018
This PDMA Essentials Book, the third in this series, provides a framework of individual, organizational, and market and societal constraints that guides managers in identifying specific constraints related to their innovation activities and provides them
Spanjol, Jelena   +2 more
core  

Engineering Stealth Properties of Fluorescent Polymeric Nanoparticles by Short‐Chain Polysarcosine

open access: yesAggregate, Volume 7, Issue 6, June 2026.
To define the minimal polysarcosine chain length required for nanoparticle stealth properties, we engineered dye‐loaded polymeric nanoparticles functionalized with 5‐, 11‐, or 19‐mer peptoids. Only nanoparticles with 19‐mer polysarcosine achieved near‐neutral zeta potential, suppressed nonspecific interactions with glass surface and live cells ...
Tanushree Gupta   +9 more
wiley   +1 more source

Testing and evaluation of Pakistan’s pioneer disaster risk communication app: a case study of PDMA Madadgar android-based app [PDF]

open access: yes
This case study examines the PDMA Madadgar Android-based App, developed as Pakistan’s pioneer disaster risk communication platform for communities in Khyber Pakhtunkhwa province.
Jan, Mushtaq Ahmad   +7 more
core   +1 more source

Sistemas de Liberação Controlada de Crotoxina a Partir de Matriz Polimérica: uma Alternativa para o Tratamento de Câncer/ Study of Controlled Release of Crotoxin from Polymer Matrix: an Alternative for the Treatment of Cancer

open access: yesRevista Ciências em Saúde, 2011
Objetivo: Avaliar o sistema de liberação controlada de Crotoxina, uma neurotoxina obtida do veneno de serpentes brasileiras e que apresenta atividade antitumoral para variados tipos de tratamentos oncológicos, mas que também apresenta efeitos colaterais ...
Rodrigo de Lima Nascimento   +3 more
doaj   +1 more source

Photo-Responsive Polymersomes as Drug Delivery System for Potential Medical Applications

open access: yesMolecules, 2020
Due to a strong retardation effect of o-nitrobenzyl ester on polymerization, it is still a great challenge to prepare amphiphilic block copolymers for polymersomes with a o-nitrobenzyl ester-based hydrophobic block.
Wanting Hou   +5 more
doaj   +1 more source

Advanced flexible brain computer interface materials: From development to application

open access: yesFlexMat, Volume 3, Issue 2, Page 185-209, June 2026.
This review explores how novel materials coatings are advancing brain‐computer interface (BCI) technology. It describes how these materials help overcome key challenges in signal accuracy, biocompatibility, and device durability. The paper highlights BCI applications in medicine and entertainment, and discusses future trends that could transform human ...
Renquan Guan   +5 more
wiley   +1 more source

For Massive Access With Sporadic Traffic in M2M Communication: Collision Avoidance or Collision Resolution

open access: yesIEEE Access, 2020
To meet the increased requirement of machine-to-machine (M2M) communication, the potential to support massive access with sporadic traffic in uplink of two typical methods, one is the collision avoidance (CA) method at the user side, and the other is the
Tingyu Qi, Youzheng Wang
doaj   +1 more source

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