Results 51 to 60 of about 537,997 (309)

Error rate analysis for indoor wireless networks [PDF]

open access: yes, 1992
An attempt is made to predict the maximum data rates for a typical wireless computer network operating in an indoor frequency-selective environment. To lower the error rates for high-speed data transmission, the impact of techniques such as diversity ...
Nix, AR, Norton, GH, McGeehan, JP
core   +1 more source

Enabling Signal Space Diversity for MU-MIMO/OFDMA Cellular Systems That Employ Frequency Diversity

open access: yesIEEE Access, 2019
Signal space diversity (SSD) is a technique to obtain diversity without loss in spectral efficiency. Despite this, SSD has been minimally studied in multiuser scenarios.
Henry Carvajal Mora   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Performance of 5G Slicing With Access Technologies and Diversity: A Review and Challenges

open access: yesIEEE Access
5G slicing has become a key technology in 5G and beyond (B5G) for realizing IMT 2020 services, including enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and massive machine-type communication (mMTC). These advancements
Sinta Novanana   +3 more
doaj   +1 more source

Kernel density estimation of allele frequency including undetected alleles [PDF]

open access: yesPeerJ
Whereas undetected species contribute to estimation of species diversity, undetected alleles have not been used to estimated genetic diversity. Although random sampling guarantees unbiased estimation of allele frequency and genetic diversity measures ...
Satoshi Aoki, Keita Fukasawa
doaj   +2 more sources

Frequency Diverse Array with Cubic Sinusoidal Frequency Offset

open access: yesJournal of Physics: Conference Series, 2020
Abstract Frequency diversity array radar (FDA) has range-angle dependent beampattern, providing enormous potential for the application of this new type of radar. However, the beampattern of conventional FDA (CFDA) has two problems: range-angle coupling and range periodicity, limiting the application of FDA.
Xinxin Qin, Changli Li
openaire   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Diversity Combining for Fast Frequency Hopping Multiple Access Systems Subjected to Nakagami-m Fading [PDF]

open access: yes, 2005
The achievable performance of various diversity combining schemes used in fast frequency hopping (FFH) aided M-ary frequency shift keying (MFSK) systems operating in a multiple access scenario subjected to Nakagami-m fading is investigated. Specifically,
Ahmed, S., Yang, L-L., Hanzo, L.
core  

Measurement campaign on transmit delay diversity for mobile DVB-T/H systems [PDF]

open access: yes, 2010
This article is posted here with permission from IEEE - Copyright @ 2010 IEEEThis paper describes the work carried out by Brunel University and Broadreach Systems (UK) to quantify the advantages that can be achieved if Transmit Delay Diversity is applied
Amaia Arrinda   +14 more
core   +1 more source

HLA haplotype frequencies and diversity in patients with hemoglobinopathies

open access: yeseJHaem, 2023
AbstractThe genetic diversity of the human leukocyte antigen (HLA) system was shaped by evolutionary constraints exerted by environmental factors. Analyzing HLA diversity may allow understanding of the underlying pathways and offer useful tools in transplant setting.
Graziana M. Scigliuolo   +25 more
openaire   +3 more sources

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