Results 101 to 110 of about 515,342 (335)
Spatial biology in cancer epigenetics
Molecular Oncology, EarlyView.Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley +1 more source
Non-orthogonal multiple access wireless energy harvesting cooperative system
Dianxin kexue, 2021 Non-orthogonal multiple access (NOMA) has recently attracted wide attention as a promising multiple access technology adopted in 5G cellular networks.In order to improve the spectrum efficiency, coverage and anti-noise performance of NOMA technology ...
Xiaoping JIN +3 more
doaj +2 more sources
Non-Orthogonal Multiple Access Technology for 5G Systems
Dianxin kexue, 2015 To meet the 5G requirements on spectral efficiency and number of connections，non-orthogonal multiple access（NMA）technology is becoming an important candidate technology.It was shed light on how NMA can be used to further improve spectral efficiency over ...
Qi Bi, Lin Liang, Shan Yang, Peng Chen
doaj +2 more sources
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Hybrid Cooperative Spectrum Sharing Protocols Based on OMA and NOMA in Cognitive Radio Networks
Applied Sciences, 2022 In cognitive radio networks (CRNs), the performance of the primary users (PUs) may suffer adverse effects from the secondary users (SUs) if the spectrum of PUs is haphazardly shared with SUs.
Suoping Li +3 more
doaj +1 more source
A non-orthogonal cooperative multiple access (NCMA) protocol and low ML decoding complexity codes [PDF]
, 2007 A half-duplex constrained non-orthogonal cooperative multiple access (NCMA) protocol suitable for transmission of information from N users to a single destination in a wireless fading channel is proposed.
Rajan, G Susinder, Rajan, B Sundar
core
Performance of Generalized Multicarrier DS-CDMA Using Various Chip Waveforms [PDF]
, 2003 In this letter, we extend our investigation of generalized multicarrier direct-sequence code-division multiple access by considering two additional types of chip waveforms, namely, the time-domain half-sine and raised-cosine chip waveforms, in addition ...
Lie-Liang Yang +3 more
core +1 more source
Throughput analysis of non-orthogonal multiple access and orthogonal multiple access assisted wireless energy harvesting K-hop relaying networks [PDF]
, 2023 This study introduces the non-orthogonal multiple access (NOMA) technique into the wireless energy harvesting K-hop relay network to increase throughput.
Nguyen, Nhat-Tien +7 more
core +2 more sources
Reconfigurable Intelligent Surface Empowered Downlink Non-Orthogonal Multiple Access [PDF]
IEEE Transactions on Communications, 2019 Power-domain non-orthogonal multiple access (NOMA) has become a promising technology to exploit the new dimension of the power domain to enhance the spectral efficiency of wireless networks.
Min Fu +3 more
semanticscholar +1 more source
Cooperative Non-Orthogonal Multiple Access in Cognitive Radio [PDF]
IEEE Communications Letters, 2016 This letter studies the application of non-orthogonal multiple access to a downlink cognitive radio (termed CR-NOMA) system. A new cooperative transmission scheme is proposed aimed at exploiting the inherent spatial diversity offered by the CR-NOMA system. The closed-form analytical results are developed to show that the cooperative transmission scheme
Lu Lv, Jian Chen 0002, Qiang Ni
openaire +1 more source