Results 61 to 70 of about 1,605,714 (290)

Diversity Order Gain with Noisy Feedback in Multiple Access Channels

open access: yes, 2008
In this paper, we study the effect of feedback channel noise on the diversity-multiplexing tradeoff in multiuser MIMO systems using quantized feedback, where each user has m transmit antennas and the base-station receiver has n antennas.
Aggarwal, Vaneet, Sabharwal, Ashutosh
core   +3 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Orbital angular momentum mode diversity gain in optical communication

open access: yesOptics Express, 2022
Vortex beams carrying orbital angular momentum (OAM) modes show superior multiplexing abilities in enhancing communication capacity. However, the signal fading induced by turbulence noise severely degrades the communication performance and even leads to communication interruption.
Lvye Nong   +8 more
openaire   +2 more sources

Maximum-rate Transmission with Improved Diversity Gain for Interference Networks

open access: yes, 2013
Interference alignment (IA) was shown effective for interference management to improve transmission rate in terms of the degree of freedom (DoF) gain. On the other hand, orthogonal space-time block codes (STBCs) were widely used in point-to-point multi ...
Jafarkhani, Hamid, Li, Liangbin
core   +2 more sources

Random beamforming OFDMA for future generation cellular communication systems [PDF]

open access: yes, 2007
This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) as applicable to future generation wireless communication systems.
Armour, SMD   +4 more
core   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS 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

Compact UWB MIMO Antenna With a Modified Back Reflector and Supported by Characteristic Mode Analysis for Wireless Communication Applications

open access: yesIEEE Access
This research presents a modified back reflector to increase isolation for a small ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna. The rectangular patch and narrow line strip on the bottom side of the substrate, arranged diagonally ...
Shailesh   +5 more
doaj   +1 more source

Performance analysis for cooperative NOMA networks based SWIPT with adaptive power splitting

open access: yesTongxin xuebao, 2023
In order to improve the spectrum effectiveness, decrease the power consumption of wireless communication system, for a two-way cooperative non-orthogonal multiple access (NOMA) network with simultaneous wireless information and power transfer (SWIPT), an
Zheng YANG   +5 more
doaj  

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS 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

Diversity gain of one-shot communication over molecular timing channels

open access: yes, 2017
We study diversity in one-shot communication over molecular timing channels. In the considered channel model the transmitter simultaneously releases a large number of information particles, where the information is encoded in the time of release.
Chowdhury, Mainak   +3 more
core   +1 more source

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