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https://open.uns.ac.rs/handle/123456789/6226
Title: | Source traffic modelling in WSN for acoustic sensing in reverberant environment | Authors: | Četić, Nenad Popović, Miroslav Đukić, Miodrag Kovačević, Jelena |
Issue Date: | 1-Jan-2015 | Journal: | Elektronika ir Elektrotechnika | Abstract: | Recent research efforts show that Wireless Sensor Networks (WSN) for acoustic sensing have the potential for ubiquitous sensing. The key challenge in delivering such WSN architecture is the trade-off between the cost of wireless sensors and acoustic analysis complexity. In this paper, we are proposing a source traffic modelling considering a system in which sensors are connected to a cloud based processing service. Acoustic sensing in practice generates great amount of traffic, and therefore a new model of sensing in a reverberant environment is necessary for better understanding of traffic nature and its volume. To lower the sensor cost, we have considered low-complexity acoustic event detection on the sensor side for preventing unnecessary traffic. The proposed acoustic sensor acts like a noise gate. Sound propagation in reverberant environment is modelled using the modified Image-Source Modelling (ISM) method. The source traffic model is validated in Matlab simulation and in real reverberant environment. Results show an example of bandwidth used by a simple acoustic sensor. | URI: | https://open.uns.ac.rs/handle/123456789/6226 | ISSN: | 13921215 | DOI: | 10.5755/j01.eee.21.5.13335 |
Appears in Collections: | FTN Publikacije/Publications |
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