Results 161 to 170 of about 3,511 (202)
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Acoustic self-localization of a wireless sensor network
The Journal of the Acoustical Society of America, 2005One 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. +2 more
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Deployment analysis of underwater acoustic wireless sensor networks
The Journal of the Acoustical Society of America, 2012In this paper, underwater sensor nodes and gateway nodes deployment strategies for two-dimensional communication architecture in Underwater Acoustic Wireless Sensor Networks(UWSNs) are proposed. In the sensor nodes deployment strategy, underwater sensor nodes are deployed in two rows along the coastline, which is of complete coverage and connectivity ...
Xia Li, Shiliang Fang
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Coding and Enhancement in Wireless Acoustic Sensor Networks
2015 Data Compression Conference, 2015We formulate a new problem which bridges between source coding and enhancement in wireless acoustic sensor networks. We consider a network of wireless microphones, each of which encoding its own measurement under a covariance matrix distortion constraint and sending it to a fusion center.
Zahedi, Adel +4 more
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Acoustic source localization in noisy wireless sensor networks
IET 2nd International Conference on Wireless, Mobile and Multimedia Networks (ICWMMN 2008), 2008Target localization is one of the typical applications of wireless sensor networks. However, there are few localization algorithms addressing the problems caused by both the noisy wireless channels and the limited sensing range and energy of sensor nodes.
null FanJiang Xu +2 more
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Acoustic localization based on wireless sensor network
2014Wireless Sensor Networks (WSN) has recently become tremendous application and research area. Accordingly, localization issue of WSN is becoming a hot topic, which aims to recognize the position of concerned object. However, it is well known that WSN is quite complicated in a real environment due to the characteristic of ad-hoc network and also limited ...
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Wireless Acoustic Emission Sensor Network for Structural Monitoring
IEEE Sensors Journal, 2009The paper presents a prototype wireless system for the detection of active fatigue cracks in aging railways bridges in real-time. The system is based on a small low-cost sensor node, called an AEPod, that has four acoustic emission (AE) channels and a strain channel for sensing, as well as the capability to communicate in a wireless fashion with other ...
A. Ledeczi +5 more
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Deployment analysis in underwater acoustic wireless sensor networks
Proceedings of the 1st ACM international workshop on Underwater networks - WUWNet '06, 2006In this paper, different deployment strategies for two-dimensional and three-dimensional communication architectures for UnderWater Acoustic Sensor Networks (UW-ASNs) are proposed, and statistical deployment analysis for both architectures is provided. The objectives of this paper are to determine the minimum number of sensors needed to be deployed to ...
Dario Pompili +2 more
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Sensor Selection and Rate Distribution Based Beamforming in Wireless Acoustic Sensor Networks
2019 27th European Signal Processing Conference (EUSIPCO), 2019Power 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) +2 more
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Acoustic Source Positioning based on Sensor Selection in Wireless Sensor Network
2020 3rd International Conference on Algorithms, Computing and Artificial Intelligence, 2020Since the bandwidth and energy of wireless sensor networks (WSNs) are limited, it is not appropriate to use all the sensors for acoustic source positioning and so the need for sensor selection. In the article, an efficient expectation maximization algorithm based on sensor selection (EM-SS) is proposed for acoustic source positioning in the WSNs.
Yuwu Feng, Guohua Hu, Lei Hong
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Acoustic Target Localization Algorithm in Wireless Sensor Networks
2013Self-organizing and high fault tolerant characteristics of wireless sensor networks make them have great advantages in target tracking region, but untagged target localization is always a difficult problem to be solved. When the target appeared in the detection region, it must cause the nearby environment parameter change.
Shuo Xiao, Qiuyan Yan
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