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- W2383399275 abstract "The typical mathematical model of radio channel has low accuracy. For deploying a wireless sensor networks and studying the channel characteristics under everyday environment,using received signal strength index,the average lost packet rate,path loss as the measures,signal propagation experiments and data analysis are performed to study the obstacle impact on radio channel and communication quality with 433 MHz and 2. 4 GHz as the carrier frequencies,using common object as the obstacles. Then a novel higher precision segmented mathematical model was proposed. At first,experimental results show that the new mathematical model of the radio channel has a higher regression coefficient R2. Second,the results demonstrate that the higher the carrier frequency of the wireless sensor network,the radio channel has the larger path loss. Besides,the wall has the strongest impact on radio channel,the weakest obstacle is iron nets. Selecting gates as obstacle,the verification experiments results show that the regression coefficient R2 of the new model is greater than 0. 97,the segmented mathematical model could improve the accuracy." @default.
- W2383399275 created "2016-06-24" @default.
- W2383399275 creator A5026650485 @default.
- W2383399275 date "2014-01-01" @default.
- W2383399275 modified "2023-09-24" @default.
- W2383399275 title "Experiment of Obstruction on the Radio Channel of WSNs" @default.
- W2383399275 hasPublicationYear "2014" @default.
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