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Research of the Edge Detection Technology in Wireless Sensor Networks

Author: ChenChengTao
Tutor: SunYan
School: Nanjing Normal University
Course: Computer Applications
Keywords: Wireless sensor networks Edge Detection Circumference Search Mobile Sink node
CLC: TN929.5
Type: Master's thesis
Year: 2011
Downloads: 25
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Abstract


The wireless sensor network (Wireless Sensor Network: WSN) is the large number of sensors in the monitoring area by the arrangement formed by the node through the wireless communication method of a multi-hop ad-hoc network system, its purpose is collaboration perceive , acquisition and processing of network within the coverage area the object information to be monitored , and sent to the viewer. As the sensor nodes to complete the acquisition , processing , storage and communication , and on battery power alone , when the battery power is exhausted , the node can not continue to work , which will lead to monitoring the edge of the area to narrow or holes , this phenomenon of WSN applications , will produce a data loss or monitoring distortion . WSN edge detection is one of the applications of wireless sensor network applications quality service support . Edge detection in the coverage of the detection , routing structure and contour detection has a very important significance . This paper studies the wireless sensor network edge detection algorithm , achieved the following results: (1 ) detection algorithms for sensor node distribution information in multi-hop energy consumption too much problem , proposed Distributed edge detection algorithm based on the circumference of search algorithms use neighbor topology and reference node perimeter coverage of basic principles , to establish the neighbors with the measured distance from the node - quadrant relationship sort table fast search algorithm detects edge node , the simulation comparison experiments show that the algorithm in the detection accuracy efficiency and reduce network energy consumption and achieved good results . ( 2) too many issues of energy consumption of sensor nodes distributed detection algorithm and the mobile node detects the false detection problem , the proposed improved mobile node edge detection algorithm M1- MoSBoD , the algorithm does not depend on the deployment of the network nodes , and does not rely on the the flooded high energy consumption of communication to achieve data acquisition , wireless communication module and multi-beam directional antenna configuration on the mobile node , counter-clockwise position farthest edge node , and then determine the outermost edge node clockwise rotation . Simulation comparison experiments show that the algorithm with respect to MoSBoD edge detection algorithm to improve the accuracy of the edge node detection to reduce the false alarm rate and undetected rate .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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