Results 1 to 10 of about 29,573 (272)

Acoustical ranging techniques in embedded wireless sensor networked devices [PDF]

open access: yesACM Transactions on Sensor Networks, 2013
Location sensing provides endless opportunities for a wide range of applications in GPS-obstructed environments, where, typically, there is a need for a higher degree of accuracy. In this article, we focus on robust range estimation , an important prerequisite for fine-grained localization.
Misra, Prasant   +4 more
openaire   +7 more sources

Acoustic Wave Reflection in Water Affects Underwater Wireless Sensor Networks [PDF]

open access: yesSensors, 2023
The phenomenon of acoustic wave reflection off fluid–solid surfaces is the focus of this research. This research aims to measure the effect of material physical qualities on oblique incidence acoustic attenuation across a large frequency range. To construct the extensive comparison shown in the supporting documentation, reflection coefficient curves ...
Kaveripakam Sathish   +7 more
openaire   +6 more sources

Coherent acoustic array processing and localization on wireless sensor networks [PDF]

open access: yesProceedings of the IEEE, 2003
Advances in microelectronics, array processing, and wireless networking have motivated the analysis and design of low-cost integrated sensing, computing, and communicating nodes capable of performing various demanding collaborative space-time processing tasks.
Chen, Joe   +7 more
exaly   +3 more sources

Wireless acoustic sensor networks and edge computing for rapid acoustic monitoring [PDF]

open access: yesIEEE/CAA Journal of Automatica Sinica, 2019
Passive acoustic monitoring is emerging as a promising solution to the urgent, global need for new biodiversity assessment methods. The ecological relevance of the soundscape is increasingly recognised, and the affordability of robust hardware for remote audio recording is stimulating international interest in the potential for acoustic methods for ...
Zhengguo Sheng   +2 more
exaly   +2 more sources

Color Filtering Localization for Three-Dimensional Underwater Acoustic Sensor Networks [PDF]

open access: yes, 2014
Accurate localization for mobile nodes has been an important and fundamental problem in underwater acoustic sensor networks (UASNs). The detection information returned from a mobile node is meaningful only if its location is known.
Chang, Shuai   +4 more
core   +9 more sources

A stateless opportunistic routing protocol for underwater sensor networks [PDF]

open access: yes, 2018
Routing packets in Underwater Sensor Networks (UWSNs) face different challenges, the most notable of which is perhaps how to deal with void communication areas.
Boutaleb, Tuleen   +2 more
core   +1 more source

An efficient scalable scheduling mac protocol for underwater sensor networks [PDF]

open access: yes, 2018
Underwater Sensor Networks (UWSNs) utilise acoustic waves with comparatively lower loss and longer range than those of electromagnetic waves. However, energy remains a challenging issue in addition to long latency, high bit error rate, and limited ...
Alfouzan, Faisal   +3 more
core   +1 more source

Rate-Constrained Noise Reduction in Wireless Acoustic Sensor Networks

open access: yesIEEE/ACM Transactions on Audio, Speech, and Language Processing, 2020
Wireless acoustic sensor networks (WASNs) can be used for centralized multi-microphone noise reduction, where the processing is done in a fusion center (FC). To perform the noise reduction, the data needs to be transmitted to the FC. Considering the limited battery life of the devices in a WASN, the total data rate at which the FC can communicate with ...
Jamal Amini   +4 more
openaire   +4 more sources

Acoustic Monitoring System Using Wireless Sensor Networks

open access: yesProcedia Engineering, 2012
AbstractIn this paper, an acoustic monitoring system is developed to address the issue and limitations of large volume sampling. IRIS and MICAz sensor motes are used to realize the hardware requirements of the WSN and the acquired data were processed. Multi-hop capability of the mesh network is also implemented.
Ismail, Muhammad Fahmi Firdaus Bin   +1 more
openaire   +1 more source

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