Results 51 to 60 of about 514 (147)

Optimizing the Lifetime of IoT-Based Star and Mesh Networks

IEEE Access, 2020
In this paper, we propose and analyze a novel optimization model to maximize the lifetime of Internet-of-Things (IoT) networks, including the Low Power Wide-Area Network (LPWAN) based Sigfox star networks and Time Slotted Channel Hopping (TSCH) mesh ...
Hamid Al-Hamadi, Mohammad Saoud, Ing-Ray Chen, Jin-Hee Cho   +3 more
doaj   +1 more source

HRL-TSCH: A Hierarchical Reinforcement Learning-Based TSCH Scheduler for IIoT

IEEE Transactions on Cognitive Communications and Networking
17 pages, 13 figures, 5 tables ...
F. Fernando Jurado-Lasso, Charalampos Orfanidis, J. F. Jurado, Xenofon Fafoutis   +3 more
openaire   +3 more sources

Building an IEEE 802.15.4e TSCH network [PDF]

2016 IEEE 35th International Performance Computing and Communications Conference (IPCCC), 2016
—Most wireless sensor networks that are currently deployed use a technology based on the IEEE 802.15.4 standard. However, this standard does not meet all requirements of industrial applications in terms of latency, throughput and robustness. That is why the IEEE 802.15.4e amendment has been designed, including the Time Slotted Channel Hopping (TSCH ...
Khoufi, Ines, Minet, Pascale, Livolant, Erwan, Rmili, Badr   +3 more
openaire   +2 more sources

TSCH and 6TiSCH for Contiki: Challenges, Design and Evaluation [PDF]

2017 13th International Conference on Distributed Computing in Sensor Systems (DCOSS), 2017
Synchronized communication has recently emerged as a prime option for low-power critical applications. Solutions such as Glossy or Time Slotted Channel Hopping (TSCH) have demonstrated end-to-end reliability upwards of 99.99%. In this context, the IETF Working Group 6TiSCH is currently standardizing the mechanisms to use TSCH in low-power IPv6 ...
Duquennoy, Simon, Elsts, Atis, Al Nahas, Beshr, Oikonomou, George   +3 more
openaire   +3 more sources

TESLA: Traffic-Aware Elastic Slotframe Adjustment in TSCH Networks

IEEE Access, 2019
Low-power wireless network for the emerging Internet of Things (IoT) should be reliable enough to satisfy the application requirements, and also energy-efficient for embedded devices to remain battery powered.
Seungbeom Jeong, Jeongyeup Paek, Hyung-Sin Kim, Saewoong Bahk   +3 more
doaj   +1 more source

Trajectories of social outcomes in individuals born very preterm from childhood to adolescence

Acta Paediatrica, Volume 114, Issue 2, Page 355-363, February 2025.
Abstract Aim To compare trajectories of social functioning in peer problems and prosocial behavior from 5 to 13 years between individuals born very preterm (VPT) and full‐term (FT). Methods Participants were from the Victorian Infant Brain Study (VIBeS) longitudinal cohort, consisting of 224 individuals born VPT and 77 born FT recruited at birth ...
Sarah C. H. Thompson, Karli Treyvaud, Leona Pascoe, Rheanna M. Mainzer, Thi‐Nhu‐Ngoc Nguyen, Terrie E. Inder, Lex W. Doyle, Peter J. Anderson   +7 more
wiley   +1 more source

Wireless Sensor Networks and TSCH: A Compromise Between Reliability, Power Consumption, and Latency

IEEE Access, 2020
Reliability, power consumption, and latency are the three main performance indicators of wireless sensor networks. Time slotted channel hopping (TSCH) is a promising technique introduced in the IEEE 802.15.4 standard that performs some steps ahead in the
Stefano Scanzio, Mohammad Ghazi Vakili, Gianluca Cena, Claudio Giovanni Demartini, Bartolomeo Montrucchio, Adriano Valenzano, Claudio Zunino   +6 more
doaj   +1 more source

Collision-Free Advertisement Scheduling for IEEE 802.15.4-TSCH Networks [PDF]

Sensors, 2019
IEEE802.15.4-time slotted channel hopping (TSCH) is a medium access control (MAC) protocol designed to support wireless device networking, offering high reliability and low power consumption, two features that are desirable in the industrial internet of things (IIoT). The formation of an IEEE802.15.4-TSCH network relies on the periodic transmissions of
Apostolos Karalis, Dimitrios Zorbas, Christos Douligeris   +2 more
openaire   +4 more sources

Origin of Amphibole Cumulates at the Base of an Exposed Arc Crustal Section: Perspectives From Fiordland, New Zealand

Island Arc, Volume 34, Issue 1, January/December 2025.
ABSTRACT The formation of amphibole‐rich cumulates in arc settings plays a crucial role in influencing the chemistry of ascending arc magmas. However, understanding the processes of formation of these cumulates is challenging due to the subtle nature of their fractionation. This study presents new petrographic and geochemical analyses of amphibole‐rich
Patrick Manselle, Stephen Foley, Nathan Daczko   +2 more
wiley   +1 more source

Orchestra [PDF]

Proceedings of the 13th ACM Conference on Embedded Networked Sensor Systems, 2015
Time slotted operation is a well-proven approach to achieve highly-reliable low-power networking through scheduling and channel hopping. It is, however, difficult to apply time slotting to dynamic networks as envisioned in the Internet of Things. Commonly, these applications do not have predefined periodic traffic patterns and nodes can be added or ...
Duquennoy, Simon, Al Nahas, Beshr, Landsiedel, Olaf, Watteyne, Thomas   +3 more
openaire   +3 more sources