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A Position Revision Method by Path-Loss Factor in GIS based Wireless Sensor Node Deployments  

Bae, Myung-Nam (한국전자통신연구원 USN기반기술연구팀)
Kwon, Hyuk-Jong ((주)웨이버스 기술연구소)
Kang, Jin-A (한국건설기술연구원 유비쿼터스 국토연구실)
Lee, In-Hwan (한국전자통신연구원 USN기반기술연구팀)
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Abstract
In this paper, we proposes a sensor node positioning algorithm that utilizes the geo-spatial elements and considers the factors to represent the propagation loss generated by the various obstacles in the urban wireless environments. First, we measures the propagation loss about the radio frequencies in major road of the urban, and defines the correlation between the measured loss and the environment information for the road and its surrounding get from Urban GIS. Secondly, through the utilization of the loss-environment correlation, we describes the detailed instruction for requiring the radio coverage decision and deploy system implementation for the wireless sensor node in urban. By the consideration of interference factor by the building and the linear structure of road, we can evaluate the path loss below 5dB RMS error. And, we proposes the way to revise the sensor node deployment based on the corelation and the measured path loss.
Keywords
Path-loss; GIS; Wireless Sensor Network; Sensor Node Deployment;
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