A CMOS image sensor with low-complexity video compression for wireless sensor networks

2013 ◽  
Author(s):  
Ahmed Chefi ◽  
Adel Soudani ◽  
Gilles Sicard
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Video Compression ◽  
Cmos Image Sensor ◽  
Low Complexity ◽  
Image Sensor ◽  
Wireless Sensor

Deterministic Deployment for Wireless Image Sensor Nodes

2014 ◽  
Vol 8 (1) ◽  
pp. 668-674
Author(s):  
Junguo Zhang ◽  
Yutong Lei ◽  
Fantao Lin ◽  
Chen Chen
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Visual Information ◽  
Image Sensor ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Coverage Area ◽  
Effective Coverage ◽  
Area Of Interest ◽  
Key Issues

Wireless sensor networks composed of camera enabled source nodes can provide visual information of an area of interest, potentially enriching monitoring applications. The node deployment is one of the key issues in the application of wireless sensor networks. In this paper, we take the effective coverage and connectivity as the evaluation indices to analyze the effect of the perceivable angle and the ratio of communication radius and sensing radius for the deterministic circular deployment. Experimental results demonstrate that the effective coverage area of the triangle deployment is the largest when using the same number of nodes. When the nodes are deployed in the same monitoring area in the premise of ensuring connectivity, rhombus deployment is optimal when √2 < rc / rs < √3 . The research results of this paper provide an important reference for the deployment of the image sensor networks with the given parameters.

scholarly journals A Low-Complexity Geometric Bilateration Method for Localization in Wireless Sensor Networks and Its Comparison with Least-Squares Methods

Sensors ◽  
2012 ◽  
Vol 12 (1) ◽  
pp. 839-862 ◽  
Author(s):  
Juan Cota-Ruiz ◽  
Jose-Gerardo Rosiles ◽  
Ernesto Sifuentes ◽  
Pablo Rivas-Perea
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Least Squares ◽  
Low Complexity ◽  
Wireless Sensor
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