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An emergency node-combined wireless network that uses balloons, electric vehicles, and unmanned aerial vehicles (UAVs) was proposed. We discuss the construction and specific issues of this network. The communication area is evaluated by changing the node elevation. In this network, the elevations of balloon and UAV nodes vary, and the communication area changes with elevation. In addition, the network...
We propose a novel communication system for evacuees of shelters, termed "Shelter Communication System (SCS)". SCS is composed of a computer (termed Shelter Server) connected to the Internet and a set of personal computers (termed shelter PCs), one in each shelter, connected to Shelter Server through a temporal link and the Internet. SCS provides a message communication service between shelters...
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