Results 221 to 230 of about 4,422 (256)

A research on the deployment of sensors in Underwater Acoustic Wireless Sensor Networks

The 2nd International Conference on Information Science and Engineering, 2010
The coverage and connectivity are important standards of the sensor deployment strategies in Underwater Acoustic Wireless Sensor Networks(UWSNs). In this paper, we mainly research on the deployment of underwater sensors in UWSNs. The advantages and disadvantages of some existing algorithms are analysed and an improved algorithm is provided, which can ...
null Zhang Yingying, null Li Xia, null Fang Shiliang   +2 more
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Hybrid Digital–Analog transmission for wireless acoustic sensor networks

Signal Processing, 2015
A crucial task of a Wireless Acoustic Sensor Network (WASN) is the transmission of the acoustic signal to a central fusion node. Due to different microphone locations, the microphones may experience different or even varying radio channel qualities. Usually, the design of the digital transmission scheme is governed by the worst-case radio channel.
Matthias Rüngeler, Peter Vary
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Acoustic scheme to count bird songs with wireless sensor networks

2011 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, 2011
A key issue for any project that aims to study endangered animals is the counting process. In this work, we propose an algorithm for automatic counting of singing birds in their habitat by using wireless sensors fitted with microphone. Sensors are used to record audio samples of bird songs and samples are analyzed to extract fingerprints that permit to
Stattner, Erick, Hunel, Philippe, Vidot, Nicolas, Collard, Martine   +3 more
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Dynamic clustering for acoustic target tracking in wireless sensor networks

IEEE Transactions on Mobile Computing, 2004
In the paper, we devise and evaluate a fully decentralized, light-weight, dynamic clustering algorithm for target tracking. Instead of assuming the same role for all the sensors, we envision a hierarchical sensor network that is composed of (a) a static backbone of sparsely placed high-capability sensors which assume the role of a cluster head (CH ...
Wei-Peng Chen, Jennifer C. Hou, Lui Sha
openaire   +1 more source

Design Considerations for an Environmental Monitoring Wireless Acoustic Sensor Network

Sensor Letters, 2015
A wireless acoustic sensor network for the sound/acoustic monitoring of areas of environmental interest, and the automated generation of multi-level sound maps for environmental assessment has been recently proposed. This contribution focuses on the design considerations of such a network, and especially on the relation of specific performance factors,
Potirakis S.M., Nefzi B., Tatlas N.-A., Tuna G., Rangoussi M.   +4 more
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Distributed classification of acoustic targets in wireless audio-sensor networks

Computer Networks, 2008
Target tracking is an important application for wireless sensor networks. One important aspect of tracking is target classification. Classification helps in selecting particular target(s) of interest. In this paper, we address the problem of classification of moving ground vehicles.
Baljeet Malhotra, Ioanis Nikolaidis, Janelle J. Harms   +2 more
openaire   +1 more source

Distributed Speech Enhancement in Wireless Acoustic Sensor Networks

2015
Intelligent ...
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Moving Vehicle Classification Using Wireless Acoustic Sensor Networks

IEEE Transactions on Emerging Topics in Computational Intelligence, 2018
Acoustic signal processing over wireless acoustic sensor networks (WASN) currently constitutes a topic receiving extensive attention by the scientific community. However, the majority of the related literature fails to consider several types of phenomena directly affecting the smooth operation of such networks, such as sensor faults, aging phenomena ...
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Design of Algorithms and Protocols for Underwater Acoustic Wireless Sensor Networks

ACM Computing Surveys, 2020
Nowadays, with the recent advances of wireless underwater communication and acoustic sensor devices technology, we are witnessing a surge in the exploration and exploitation of the ocean’s abundant natural resources. Accordingly, to fulfill the requirements of the exploration of the ocean, researchers have focused their work toward the design of ...
Azzedine Boukerche, Peng Sun 0007
openaire   +1 more source

Simplified acoustic localization by linear arrays for wireless sensor networks

2013 18th International Conference on Digital Signal Processing (DSP), 2013
The application of wireless sensor networks (WSN) for the task of acoustic localization provides great opportunities for distributed cooperative tracking of sound sources in large areas. However WSNs are significantly more limited in terms of computational resources and power than typical computer systems.
Sergei Astapov, Jürgo-Sören Preden, Julia Berdnikova   +2 more
openaire   +1 more source