Abstract
Wireless sensor network (WSN) is widely applied to I-home, I-office, greenhouse agriculture, environment monitoring and many other industry areas. Signal attenuation and barriers make WSN hard to get high quality and reliability of network communication, which are very import to monitoring systems. This paper focus on the signal attenuation performance in WSN, analyzes the model of signal attenuation, and researches its performance with different signal transmitting distance and different barriers. According to test results, this paper gives the model of signal attenuation with the effect of barriers on transmitting. The results can apply to the distribution of wireless sensor nodes and the optimization of network topology.
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