Results 61 to 70 of about 16,146,716 (284)
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
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
Performance improvement of non-orthogonal multiple access scheme using code division multiplexing
International Journal of Distributed Sensor Networks, 2017 Currently, the standardization of fifth-generation mobile communication system (5G), which realizes 10 Gbps transmission, is in progress. In mobile communications, it is generally difficult to perform high-capacity transmission because of channel fading.
Hiroki Kitagawa, Eiji Okamoto
doaj +1 more source
Adaptive Clustering of Users in Power Domain NOMA
Sensors, 2023 By enabling multiple non-orthogonal transmissions, power domain non-orthogonal multiple access (PD-NOMA) potentially increases a system’s spectral efficiency.
Yuri P. Santos, Luiz F. Q. Silveira
doaj +1 more source
FEBS Open Bio, EarlyView.NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks +4 more
wiley +1 more source
, 2000 The performance of Reed–Solomon (RS) coded direct-sequence code division multiple-access (DS-CDMA) systems using noncoherent M-ary orthogonal modulation is investigated over multipath Rayleigh fading channels.
Yang, L-L., Hanzo, L., Yen, K.
core +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
Non-orthogonal multiple access for unmanned aerial vehicle assisted communication [PDF]
, 2018 The future wireless networks promise to provide ubiquitous connectivity to a multitude of devices with diversified traffic patterns wherever and whenever needed.
Sohail, M. F., Leow, C. Y., Won, S.
core +1 more source
Exploiting Multiple-Antenna Techniques for Non-Orthogonal Multiple Access [PDF]
IEEE Journal on Selected Areas in Communications, 2017 This paper aims to provide a comprehensive solution for the design, analysis, and optimization of a multiple-antenna non-orthogonal multiple access (NOMA) system for multiuser downlink communication with both time duplex division (TDD) and frequency duplex division (FDD) modes.
Xiaoming Chen 0001 +3 more
openaire +3 more sources