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Cognitive radio-aided wireless sensor networks for emergency response

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National Technical University of Athens   

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Cognitive radio-aided wireless sensor networks for emergency response (EN)
Zafeiropoulos, A (EN)
Mitrou, N (EN)
Spanos, D-E (EN)
Barbounakis, S (EN)
Arkoulis, S (EN)
journalArticle (EN)
2014-03-01T01:33:00Z
2010 (EN)
A lot of research effort has been put into wireless sensor networks (WSNs) and several methods have been proposed to minimize the energy consumption and maximize the network's lifetime. However, little work has been carried out regarding WSNs deployed for emergency situations. We argue that such WSNs should function under a flexible channel allocation scheme when needed and be able to operate and adapt in dynamic, ever-changing environments coexisting with other interfering networks (IEEE 802.11b/g, 802.15.4, 802.15.1). In this paper, a simple and efficient method for the detection of a single operational frequency channel that guarantees satisfactory communication among all network nodes is proposed. Experimental measurements carried out in a real environment reveal the coexistence problem among networks in close proximity that operate in the same frequency band and prove the validity and efficiency of our approach. © 2010 IOP Publishing Ltd. (EN)
Engineering, Multidisciplinary (EN)
Instruments & Instrumentation (EN)
Energy consumption (EN)
Bluetooth (EN)
Coexistence problem (EN)
Wireless sensor (EN)
Emergency response (EN)
Operational frequency (EN)
Spectrum access (EN)
Energy utilization (EN)
Changing environment (EN)
Spectroscopy (EN)
Frequency bands (EN)
Wi-Fi (EN)
Flexible channel allocation (EN)
Cognitive radio (EN)
Real environments (EN)
Experimental measurements (EN)
Standards (EN)
Efficient method (EN)
Interference suppression (EN)
Wireless sensor networks (EN)
Research efforts (EN)
Network node (EN)
IEEE 802.11b/g (EN)
Sensor networks (EN)
Close proximity (EN)
Emergency (EN)
WiFi (EN)
Emergency situation (EN)
Measurement Science and Technology (EN)
English
IOP PUBLISHING LTD (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
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