Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Huan-Bang Li"'
Publikováno v:
IEEE Access, Vol 12, Pp 121144-121155 (2024)
Elderly care becomes more and more important as elderly populations increase. Many solutions are proposed for monitoring elderly activities of daily living (ADL) or healthcare related data. There are two aspects to be tackled to enable monitoring for
Externí odkaz:
https://doaj.org/article/24660f3342fe415491710c30e984afb5
Publikováno v:
Drones, Vol 7, Iss 11, p 669 (2023)
The exponential growth of unmanned aerial vehicles (UAVs) or drones in recent years has raised concerns about their safe operation, especially in beyond-line-of-sight (BLOS) scenarios. Existing unmanned aircraft system traffic management (UTM) heavil
Externí odkaz:
https://doaj.org/article/2709ac7668b34fb5a1435eb0772b7dc2
Publikováno v:
IEEE Open Journal of Signal Processing, Vol 3, Pp 450-463 (2022)
Indoor location localization using the time of arrival (TOA) of ultra-wideband (UWB) radio waves faces a challenge in obtaining accurate TOA values in a non-line-of-sight (NLOS) environment owing to obstacles and multipath reception. The accuracy of
Externí odkaz:
https://doaj.org/article/4a8b648dc59f412f8a709e709b5feed5
Publikováno v:
Drones, Vol 7, Iss 5, p 283 (2023)
In recent years, safety operation issues related to the autonomous flight of unmanned aerial vehicles (UAVs) have become popular research and development topics worldwide. Among all UAV applications, multiple UAV-related applications are emerging due
Externí odkaz:
https://doaj.org/article/3c50ec2e8bac47f1be8193bc3b01fe60
Publikováno v:
IEEE Access, Vol 8, Pp 37453-37464 (2020)
This study aims to develop a system of device-to-device (D2D) communications for information collection, distribution and sharing among local communities. It establishes a D2D testbed with low power consumption and solar power supply to evaluate the
Externí odkaz:
https://doaj.org/article/bff533b6992c452282e2526d85c6c741
Publikováno v:
IEEE Access, Vol 7, Pp 79127-79135 (2019)
In recent years, unmanned aerial vehicle (UAV), also called a drone, is getting more and more important in many emerging technology areas. For communication area, the drone also takes an important role in lots of significant topics like emergency com
Externí odkaz:
https://doaj.org/article/b47f3ae710544492820d7c518a6d9d0a
Publikováno v:
IEEE Access, Vol 4, Pp 627-638 (2016)
Wireless multihop infrastructures (WMIs) are promising network platforms that facilitate applications, such as smart cities, emergency responses, and outdoor events. WMIs can allow coverage over large areas with low setup and maintenance overheads. H
Externí odkaz:
https://doaj.org/article/1dd50628e41a4801bde9d36907e53192
Publikováno v:
IEEE Access, Vol 4, Pp 514-528 (2016)
A wireless multihop infrastructure (WMI) employs homogeneous and easily deployable wireless routers to facilitate disaster-resilient Internet access in smart cities, emergency situations, and the Internet of Things. On the other hand, however, a WMI
Externí odkaz:
https://doaj.org/article/0f712131c0254b41943b81c429690f7e
Publikováno v:
Energies, Vol 9, Iss 1, p 45 (2016)
Recently there have been large advances in energy technologies for battery-operated systems, including green energy resources and high capacity batteries. The effective use of battery energy resources in wireless infrastructure networks to improve th
Externí odkaz:
https://doaj.org/article/944f9b8f4a174bdc8b989e350abf2ea7
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2008 (2008)
Complementary WLAN and WPAN technologies as well as other wireless technologies will play a fundamental role in the medical environments to support ubiquitous healthcare delivery. This paper investigates clear channel assessment (CCA) and its impact
Externí odkaz:
https://doaj.org/article/8be78372109443e4b3cf130652ea82d0