Goshi Sato, Daisuke Asahizawa, Yasuhiro Kawano, Y. Shibata
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Disaster Information Network by Cognitive Radio LANs
In this paper, we introduce a mobile network for disaster communication network by combination of different wireless LANs and mobile network. Currently available wireless LANs such as IEEE802.11b,g,j,n, IEEE802.16, cellular network are combined with a mobile router and loaded on a car to build a cognitive radio LAN node. Using multiple mobile network nodes, a large disaster communication network is organized. A communication path between nodes has multiple links and the suitable links among them is selected based on the distance, power and transmission frequency. By multi-hopping those nodes, user can communicate with other user and send/receive disaster information even though some of information infrastructure are damaged. In this paper, we designed a wireless mobile network with currently available different wireless LANs and constructed a prototyped system to evaluate the functional and performance.
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