Results 71 to 80 of about 6,450,359 (383)
Connecting communities: Enhancing broadband access in rural Tanzania through small cell deployment
Journal of Engineering Research and ReviewsAim: The aim of this study is to explore potential performance enhancement to a network infrastructure comprising with Macro-cells only by introducing and deploying cost-effective and adaptable small-cell backhaul connections.
Pascal Yamakili +1 more
doaj +1 more source
Физика волновых процессов и радиотехнические системы, 2020 This article is devoted to the study of the possibilities of increasing spectral efficiency in MIMO systems by using antennas with substrates of biisotropic and bianisotropic chiral metamaterials and various types of fractal emitters, in particular ...
Andrey N. Bespalov +3 more
doaj +1 more source
IEEE Access, 2023 This paper focuses on investigating uplink (UL) data transmission in cell-free massive MIMO based on orthogonal frequency division multiplexing (CF-mMIMO-OFDM) systems, taking into account the effects of hardware impairments (HWIs).
Asma Mabrouk, Rafik Zayani
doaj +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Information capacity of direct detection optical transmission systems
, 2017 We show that the spectral efficiency of a direct detection transmission system is at most 1 bit/s/Hz less than the spectral efficiency of a system employing coherent detection with the same modulation format.
Mecozzi, Antonio, Shtaif, Mark
core +1 more source
Spectral Representations of Neutron-Star Equations of State [PDF]
, 2010 Methods are developed for constructing spectral representations of cold (barotropic) neutron-star equations of state. These representations are faithful in the sense that every physical equation of state has a representation of this type, and conversely ...
Lindblom, Lee
core +1 more source
Scalable Cell-Free Massive MIMO with Multiple CPUs
Mathematics, 2022 In this paper, we consider the uplink of a scalable cell-free massive MIMO (CF-M-MIMO) system where user equipments (UEs) are served only by a subset of access points (APs).
Feiyang Li +3 more
doaj +1 more source
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
On the Spectral Efficiency for Distributed Massive MIMO Systems
Applied Sciences, 2021 Distributed MIMO (D-MIMO) systems are expected to play a key role in deployments for future mobile communications. Together with massive MIMO technology, D-MIMO aims to maximize the spectral efficiency and data rate in mobile networks.
Alejandro Ramírez-Arroyo +4 more
doaj +1 more source
Hybrid M-FSK/DQPSK Modulations for CubeSat Picosatellites [PDF]
, 2013 Conventional CubeSat radio systems typically use one of several basic modulations, such as AFSK, GMSK, BPSK, QPSK and OOK or switch between them on demand if possible.
Mraz, J., Vertat, I.
core +1 more source