Data transmission methodology for disaster information in unstable network

Abstract

Recently, wearable computer for rescue party is expected for improving their rescue ability such as lifesaving in disaster. In this case, one of the most important factors of effective and efficient rescue activity are certain and real-time sharing of disaster information between rescue party and the center of disaster mitigation. However, in most cases, the narrow-band and unstable network connection that is supplied by the mobile communication devices is used for the connection method of wearable computer as default. As a result, it has been said that use of a wearable computer is not so good for a rescue party. For dissolving this problem, we apply the data transmission methodology that has the feature in dealing with the narrow-band and unstable network. In this experience, we use the two kinds of algorithm for this methodology, and compared these with the normal transmission methodology in the narrow-band network. In this experiment, the normal system stopped the transmission soon. One algorithm could not cope with the sudden change of band width. The other algorithm could transmit the whole data in real-time.