Results 41 to 50 of about 24,864 (258)

A Survey on Integration Design of Localization, Communication, and Control for Underwater Acoustic Sensor Networks

open access: yesIEEE Internet of Things Journal
Underwater acoustic sensor networks (UASNs), which are formed by a number of interconnected mobile vehicles and static sensors, have emerged as a promising solution to explore and utilize the ocean resources.
Jing Yan   +4 more
semanticscholar   +1 more source

UA-MAC: An Underwater Acoustic Channel Access Method for Dense Mobile Underwater Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
The long propagation delay and low data rate characteristics of acoustic communication attach many challenges to underwater wireless sensor networks. In this paper, a TDMA based underwater acoustic channel access method (UA-MAC) is proposed mainly to ...
Chao Lv, Shuo Wang, Min Tan, Lan Chen
doaj   +1 more source

Multimodal Acoustic-RF Adaptive Routing Protocols for Underwater Wireless Sensor Networks

open access: yesIEEE Access, 2019
In multi-function underwater wireless sensor networks (UWSNs), multiple applications share the same physical infrastructure to fully exploit network resources. Under such scenarios, diverse packets coexist in the same network which require differentiated
Hanjiang Luo   +5 more
doaj   +1 more source

Joint Channel and Power Assignment for Underwater Cognitive Acoustic Networks on Marine Mammal-Friendly

open access: yesApplied Sciences, 2023
When marine animals and underwater acoustic sensor networks (UASNs) share spectrum resources, problems such as serious harm caused to marine animals by underwater acoustic systems and scarcity of underwater spectrum resources are encountered.
Libin Xue, Chunjie Cao
doaj   +1 more source

ORIT: A Transport Layer Protocol Design for Underwater DTN Sensor Networks

open access: yesIEEE Access, 2019
Research challenges have focused on underwater acoustic sensor networks characterized by long propagation delay, narrow bandwidth, and frequently disconnected interruption, among others, which can be viewed as delay/disruption tolerant networks (DTNs ...
Yishan Su, Rong Fan, Zhigang Jin
doaj   +1 more source

Further simulation testing in CoopMAC-U for underwater acoustic sensor networks

open access: yesJurnal Jaringan Telekomunikasi, 2023
In order for underwater wireless sensor networks to communicate more efficiently, MAC protocols are needed to control the use of acoustic channels. With the high propagation delay and the limited bandwidth available on the acoustic channel, a specially ...
Muhammad Syirajuddin S.   +4 more
doaj   +1 more source

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

open access: yesAdvanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li   +12 more
wiley   +1 more source

Localization and Detection of Targets in Underwater Wireless Sensor Using Distance and Angle Based Algorithms

open access: yesIEEE Access, 2019
Underwater localization is used as a key element in most applications of underwater communications. Despite the global positioning system (GPS) receivers are usually employed in terrestrial wireless sensor networks, they cannot be exploited for ...
Inam Ullah   +4 more
doaj   +1 more source

A Push-Based Probabilistic Method for Source Location Privacy Protection in Underwater Acoustic Sensor Networks

open access: yesIEEE Internet of Things Journal, 2022
As the research topics in ocean emerge, underwater acoustic sensor networks (UASNs) have become ever more relevant. Consequently, challenges arise with the security and privacy of the UASNs.
Hao Wang   +3 more
semanticscholar   +1 more source

Intrinsically Stretchable Piezoelectric Nanocomposites for Artificial Ultrasonic Sensory Synapse

open access: yesAdvanced Materials, EarlyView.
Applying ultrasonic stimulations to a soft‐stretchable underwater piezoelectric sensor based on the soft‐stretchable nanocomposite from the thermal cross‐linking between the ─C─F group of P(VDF‐TrFE) and the ─NH2 group of (PEG‐diamine) with incorporating amine‐terminated BTO@APTES nanofillers on the soft PDMS substrates generated high piezoelectric ...
Trung Dieu Do   +11 more
wiley   +1 more source

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