@techreport{oai:ipsj.ixsq.nii.ac.jp:00092314,
 author = {JaneLouieZamora and Shigeru, Kashihara and Suguru, Yamaguchi and Jane, LouieZamora and Shigeru, Kashihara and Suguru, Yamaguchi},
 issue = {4},
 month = {May},
 note = {According to the United Nations Office for Disaster Risk Reduction, developing or least developed countries lack weather observation systems, making them more vulnerable to extreme weather events. Moreover, there is low sensor coverage and monitoring system sustainability in such countries. Using sophisticated meteorological equipment may not be scalable for these countries. Our research goal is to develop a warning system for localized heavy rains for developing or least developed countries by using a network of smartphones to facilitate current weather information. As preliminary research, we performed experiments to find whether signal attenuation can detect heavy rain or not. We then discuss in this paper the results of observing 5 GHz WiFi signal behavior using a smartphone under rainy conditions. As a result, we showed how the signal strength is affected under different rain conditions., According to the United Nations Office for Disaster Risk Reduction, developing or least developed countries lack weather observation systems, making them more vulnerable to extreme weather events. Moreover, there is low sensor coverage and monitoring system sustainability in such countries. Using sophisticated meteorological equipment may not be scalable for these countries. Our research goal is to develop a warning system for localized heavy rains for developing or least developed countries by using a network of smartphones to facilitate current weather information. As preliminary research, we performed experiments to find whether signal attenuation can detect heavy rain or not. We then discuss in this paper the results of observing 5 GHz WiFi signal behavior using a smartphone under rainy conditions. As a result, we showed how the signal strength is affected under different rain conditions.},
 title = {Measurement Results of IEEE802.11a WiFi Signal Attenuation Under Different Rain Conditions},
 year = {2013}
}