Results 1 to 10 of about 1,263 (169)

An Uplink Transmission Scheme for Pattern Division Multiple Access Based on DFT Spread Generalized Multi-Carrier Modulation

open access: yesIEEE Access, 2018
In order to meet the requirements of high system throughput, massive connectivity, and asynchronous transmission for 5G and beyond, non-orthogonal transmission techniques, including modulation techniques and multiple access techniques, have attracted a ...
Xin Bian   +4 more
doaj   +1 more source

Polymer-coated hexagonal upconverting nanoparticles: chemical stability and cytotoxicity

open access: yesFrontiers in Chemistry, 2023
Large (120 nm) hexagonal NaYF4:Yb, Er nanoparticles (UCNPs) were synthesized by high-temperature coprecipitation method and coated with poly(ethylene glycol)-alendronate (PEG-Ale), poly (N,N-dimethylacrylamide-co-2-aminoethylacrylamide)-alendronate (PDMA-
Vitalii Patsula   +12 more
doaj   +1 more source

Downlink Power Allocation Optimization in Pattern Division Multiple Access

open access: yesIEEE Access, 2021
Non-orthogonal multiple access (NOMA), in particular pattern division multiple access (PDMA), has been recently considered as the critical multiple access technologies deployed for 5G applications.
Jie Zeng   +5 more
doaj   +1 more source

Performance Analysis of Cooperative Pattern Division Multiple Access (Co-PDMA) in Uplink Network

open access: yesIEEE Access, 2017
As a promising candidate non-orthogonal multiple access scheme for the fifth generation (5G) wireless communication system, pattern division multiple access (PDMA) has received considerable attention recently.
Wanwei Tang, Shaoli Kang, Bin Ren
doaj   +1 more source

Proline-2′-deoxymugineic acid, a phytosiderophore analog, drives beneficial rhizobacterial community formation to promote peanut micronutrition [PDF]

open access: yesFrontiers of Agricultural Science and Engineering
2′-Deoxymugineic (DMA), a phytosiderophore secreted by Poaceae species, can improve iron nutrition in plants. However, little is known about how DMA influences beneficial bacteria in rhizosphere microecosystem.
Tianqi WANG   +8 more
doaj   +1 more source

Exploiting Joint Base Station Equipped Multiple Antenna and Full-Duplex D2D Users in Power Domain Division Based Multiple Access Networks

open access: yesSensors, 2019
In this paper, we investigate power domain division-based multiple access (PDMA) to support the base stations (BS) equipped with multiple antennas to serve mobile users.
Dinh-Thuan Do   +3 more
doaj   +1 more source

Estimación de las precipitaciones diarias de diseño en Argentina a partir de datos derivados de satélite

open access: yesTecnología y ciencias del agua, 2023
Se presentan los resultados de la estimación de las precipitaciones diarias de diseño en Argentina para el 97 % del territorio nacional continental. Este análisis se basó en el procesamiento de los datos de precipitación derivados de satélite (DPDS) del ...
Juan F. Weber   +2 more
doaj   +1 more source

Research on PDMA system based on complementary sequence and low complexity detection algorithm

open access: yesIET Communications, 2021
With the intensive deployment of mobile networks and the vigorous development of new multimedia services, video has gradually become the mainstream of cultural consumption.
Shufeng Li   +4 more
doaj   +1 more source

The Design of Receiver with Low Complexity for PDMA System

open access: yesJournal of Physics: Conference Series, 2020
Abstract As one of promising non-orthogonal multiple access scheme, pattern division multiple access (PDMA) scheme is considered to be one competitive multiple access technology for the fifth generation (5G) communications. The detection algorithm is the key technology to improve the system performance.
Wanwei Tang   +6 more
openaire   +1 more source

Optimisation of convergence‐aware coded PDMA for 5G wireless systems [PDF]

open access: yesIET Communications, 2019
Orthogonal frequency division multiplexing‐based pattern division multiple access (PDMA) is considered as a promising multiple access scheme for future wireless communication systems due to its high spectral efficiency and powerful ability to support massive users.
Jin Xu   +5 more
openaire   +1 more source

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