Results 41 to 50 of about 353 (122)

Rethinking Grant-Free Protocol in mMTC

GLOBECOM 2024 - 2024 IEEE Global Communications Conference
This paper revisits the identity detection problem under the current grant-free protocol in massive machine-type communications (mMTC) by asking the following question: for stable identity detection performance, is it enough to permit active devices to transmit preambles without any handshaking with the base station (BS)?
Minhao Zhu, Yifei Sun, Lizhao You, Zhaorui Wang 0001, Ya-Feng Liu, Shuguang Cui   +5 more
openaire   +2 more sources

Probabilistic Characteristics of the Downlink Radio Channels Spectral Efficiency in Macro-Sites of 5G Mobile Communications

Доклады Белорусского государственного университета информатики и радиоэлектроники
Mathematical models for the analysis of probabilistic characteristics of the spectral efficiency of downlink radio channels in macro-sites of mobile (cellular) radio communications have been developed, and estimates of the probability distributions and ...
V. Mordachev
doaj   +1 more source

Hybrid Services Collaborative Resource Scheduling Strategy towards Artificial Intelligence of Things

Applied Sciences, 2023
The increasing number of Artificial Intelligence of Things (AIoT) devices at the edge layer brings serious challenges to the traditional access network architecture, which results in a decrease in data transmission due to different QoS requirements.
Songnong Li, Yao Yan, Yongliang Ji, Wenxin Peng, Lingyun Wan, Puning Zhang   +5 more
doaj   +1 more source

Biosynthese des vollständig gesättigten C16‐Homosesquiterpens Descartan durch Deprotonierung mit Cyclopropanierung

Angewandte Chemie, EarlyView.
Eine nicht‐kanonische C16‐Sesquiterpensynthase aus Morganella morganii produziert das ungewöhnliche Grundgerüst Descartan. Ihr Cyclisierungsmechanismus wurde mittels Isotopenmarkierungsexperimenten und DFT‐Berechnungen aufgeklärt. Gezielte Mutagenese veränderte die Enzymfunktion und führte zu alternativen Produkten, darunter Voltairen, dessen ...
Kexin Yang, Philip Troycke, Bernd Goldfuss, Michael Groll, Jeroen S. Dickschat   +4 more
wiley   +1 more source

Biosynthesis of the Fully Saturated C16 Homosesquiterpene Descartane Through Deprotonation With Cyclopropanation

Angewandte Chemie International Edition, EarlyView.
A non‐canonical C16 sesquiterpene synthase from Morganella morganii produces the unusual scaffold descartane. Its cyclisation mechanism was rationalised by isotopic labelling experiments and DFT calculations. Site‐directed mutagenesis altered enzyme function, resulting in alternative products, including voltairene, which requires a different ...
Kexin Yang, Philip Troycke, Bernd Goldfuss, Michael Groll, Jeroen S. Dickschat   +4 more
wiley   +1 more source

Unpacking the Process of Integrating Sustainability into Management Control Systems: A Literature Review and an Analytical Framework

Business Strategy and the Environment, EarlyView.
ABSTRACT In recent years, organizations are adapting their control systems to meet institutional demands for sustainability disclosure. However, the process of integrating sustainability within management control systems (MCSs) remains underexplored, despite extensive literature on sustainability controls.
Anna Lucia Missaglia, Valentina Minutiello, Andrea Urbinati, Patrizia Tettamanzi   +3 more
wiley   +1 more source

Optimizing Access Demand for mMTC Traffic Using Neural Networks

IEEE Transactions on Vehicular Technology, 2023
Machine-type communications show unique spatial and temporal correlation properties that often lead to bursty access demand profiles. With the expected large-scale deployment of the Internet of Things (IoT), next-generation mobile networks should be redesigned to manage massive, highly synchronized arrivals of access requests by employing efficient ...
Martí Llobet, Margarita Cabrera-Bean, Josep Vidal, Adrian Agustin   +3 more
openaire   +4 more sources

The Age of Information in Wireless Cellular Systems: Gaps, Open Problems, and Research Challenges

Sensors, 2023
One of the critical use cases for prospective fifth generation (5G) cellular systems is the delivery of the state of the remote systems to the control center.
Elena Zhbankova, Abdukodir Khakimov, Ekaterina Markova, Yuliya Gaidamaka   +3 more
doaj   +1 more source

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram, Luca Feltrin, Mustafa Ozger, Cicek Cavdar   +3 more
wiley   +1 more source

The Trophic Cascade Effects of Marine Mesozooplankton: Theory, Dynamics, and Responses to Global Change

Microorganisms
Marine mesozooplankton (0.2–20 mm), as a critical trophic link between primary producers and higher trophic levels, are pivotal drivers of trophic cascades regulating pelagic ecosystem structure and function.
Mianrun Chen
doaj   +1 more source