DocumentCode :
3432970
Title :
FoV-Clustering as a solution to a novel camera node activation problem in WVSNs
Author :
Aghdasi, Hadi S. ; Nasseri, Sara ; Abbaspour, Maghsoud
Author_Institution :
Comput. Eng. Dept., Shahid Beheshti Univ., Tehran, Iran
fYear :
2010
fDate :
20-22 Oct. 2010
Firstpage :
1
Lastpage :
5
Abstract :
In Wireless Visual Sensor Networks (WVSNs), node selection and organization to realize applications is the title of some research fields known as network topology models that can be classified into two main categories of single-tier and multi-tier. According to the literature, only multi-tier topology model is able to provide a balance between WVSNs objectives such as low cost, maximum coverage, minimum energy consumption, high functionality, and good reliability. In a general architecture for this model, the lowest tier consists of scalar nodes that can activate camera nodes of upper tier only if necessary. However, regarding the inter-tier communication radio range and camera nodes´ covered area, in many cases the activated cameras do not detect any objects. The mentioned problem which wastes energy and processor time for doing unneeded image capturing and object detection operations is introduced for the first time in this paper. Besides, a new clustering method with the aim of determining the scalar nodes located inside the area covered by a camera node is proposed as a solution. As the simulation results indicate, this solution has succeeded in saving camera nodes´ energy and prolonging network lifetime.
Keywords :
cameras; wireless sensor networks; FoV-clustering; WVSN; camera node activation problem; image capturing; inter-tier communication radio; multi-tier topology model; network topology models; node organization; node selection; object detection; wireless visual sensor networks; Cameras; Clustering methods; Energy consumption; Object detection; Sensors; Visualization; Wireless sensor networks; Clustering Protocols; Energy Efficiency; Multi-Tier Topology Model; Wireless Visual Sensor Networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Days (WD), 2010 IFIP
Conference_Location :
Venice
ISSN :
2156-9711
Print_ISBN :
978-1-4244-9230-5
Electronic_ISBN :
2156-9711
Type :
conf
DOI :
10.1109/WD.2010.5657721
Filename :
5657721
Link To Document :
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