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Integrated Wireless Authentication System: Sharing Satellite Communication among Multiple Organizations after Natural Disasters

The catastrophic earthquake and Tsunami of Tohoku Japan in 2011, caused colossal damages to the ground infrastructures that resulted in the lost of means to acquire and to convey information between rescues and victims of disaster. This unfortunate situation of helplessness prompted us to propose in this paper a reliable means to recover a function of telecom infrastructure immediately by use of portable satellite phone with narrow band. The proposed system consists of sharing Internet access through satellite phone among multiple users and protocol conversion to improve the degraded performance caused by long-latency over satellite communication. The protocol conversion from application protocol like HTTP (Hypertext Transfer Protocol) over TCP (Transmission Control Protocol) to batch-oriented reliable protocol with forward error collection is presented. Through the implementation, we shows that the satellite communication is stabilized even in narrow band and it can be shared among many disaster victims.