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Research in Wireless Sensor Network

Author: XuXiuCheng
Tutor: HuShiPing
School: National University of Defense Science and Technology
Course: Computer Science and Technology
Keywords: Wireless sensor networks Routing Protocol Topology Embedded gateway Ethernut Nut / OS Nut / Net CGI OPNET
CLC: TN929.5
Type: Master's thesis
Year: 2007
Downloads: 168
Quote: 6
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Abstract


With the rapid development MEMS technology ( MESMS ) , embedded technology , network and wireless communication technology , wireless sensor networks has become a hot research in various fields . Wireless sensor network is a large number of perception , the embedded node computing power and communication capabilities of the network system connected through wireless self-organizing way , it 's widely used to promote the organic integration of the physical world and the world of information , so that people can faster , more accurate insight into the changes in the micro and macro environment , thus facilitating the ability to transform and control environment . In this issue , we propose an implementation of wireless sensor networks and the Internet networking solutions . Ethernet access Internet - based embedded solutions - Ethernut, and wireless sensor network node and operating system technology , designed an embedded wireless sensor network gateway . Through the design of the interface and power access circuit , the gateway first POE technology to receive power from the Ethernet infrastructure , then the gateway through the serial port to connect two Sink node , and by stealing technology Sink node continuous power supply . Nut / OS embedded operating system and Nut / net protocol stack software , combined with the use of wireless sensor network node operating system comes with a communication module , designed gateway part of several functional modules , design embedded with there are double the Sink the wireless sensor network gateway . Structure of wireless sensor network and Internet connectivity , embedded gateway based on this design with Dual Sink node hierarchical distance topology , and proposed a wireless network node localization method based on this structure . Based on the idea of this topology and straight line routing , design an energy optimal routing protocol , the final performance of the routing protocols using OPNET examined by simulation .

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