Results 221 to 230 of about 3,762 (261)

Multi-Agent-Based Acoustic Sensor Node Deployment in Underwater Acoustic Wireless Sensor Networks

Journal of Information Technology Research, 2020
The deployment of acoustic sensor nodes in 3-D underwater acoustic wireless sensor networks (UAWSN) is a difficult task due to various aquatic conditions and physical obstacles. This work proposes multi-agent-based acoustic sensor node deployment (MASD) to deploy the acoustic nodes at ideal positions to enhance coverage and seamless connectivity.
Basaprabhu S. Halakarnimath, Ashok V. Sutagundar   +1 more
openaire   +1 more source

A Wireless Network of Acoustic Sensors for Environmental Monitoring

Key Engineering Materials, 2014
A distributed microelectronic system for the sound/acoustic monitoring of areas of environmental interest, based on a wireless network of acoustic sensors (microphones), and the automated generation of multi-level sound maps for environmental assessment has been recently proposed.
Potirakis, Stelios M., Nefzi, Bilel, Tatlas, N. -A., Tuna, Gurkan, Rangoussi, M.   +4 more
openaire   +2 more sources

Acoustic objective recognition in wireless sensor networks

2009 4th IEEE Conference on Industrial Electronics and Applications, 2009
As different types of noises coming from different vehicles and weapons mix together, it is a challenge to identify acoustic objectives in such a noisy situation. A systematical study of acoustic objective recognition in wireless sensor network is conducted in this paper.
Weijun Duan, Mingyi He, Yan Chang, Yan Feng   +3 more
openaire   +1 more source

Acoustic self-localization of a wireless sensor network

The Journal of the Acoustical Society of America, 2005
One of the biggest challenges to the field of wireless sensor networks is self-localization: that is the determination of the relative and absolute coordinates of each sensor node in the network. Previous work has been done to locate hydrophone arrays. However sensor networks have some unique constraints that make this more challenging.
Schmidt, Peter L., Williams, Stephen M., Frampton, Kenneth D.   +2 more
openaire   +1 more source

Sensor Selection and Rate Distribution Based Beamforming in Wireless Acoustic Sensor Networks

2019 27th European Signal Processing Conference (EUSIPCO), 2019
Power usage is an important aspect of wireless acoustic sensor networks (WASNs) and reducing the amount of information that is to be transmitted is one effective way to save it. In previous contributions, we presented sensor selection as well as rate distribution methods to reduce the power usage of beamforming algorithms in WASNs.
Zhang, J. (author), Heusdens, R. (author), Hendriks, R.C. (author)   +2 more
openaire   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources