Never Die Networks

Never Die Network Based on Cognitive Wireless Network and
Satellite System for Large Scale Disaster
Noriki Uchiday, Kazuo Takahata
Dept. of Informational Social Studies
Saitama Institute of Technology
1690 Fusaiji, Fukaya, Saitama 369-2093, Japan fuchida, [e-mail]
Yoshitaka Shibata
Faculty of Software and Information Science
Iwate Prefectural University
152-52 Sugo, Takizawa, Iwate 020-0193, Japan [e-mail] Norio Shiratori
Research Institute of Electrical Communication
Tohoku University
2-1-1 Katahira, Aobaku, Sendai, Miyagi 980-8577, Japan [e-mail] Abstract
The Great East Japan Earthquake caused many casualties and radiation contamination from the
Fukushima nuclear power plant, and many problems still remain in the disaster area. The communication network was severely affected by the earthquake. The network disconnection greatly delayed the rescue work and isolated many residential areas. This lack of robust network connection has become one of the major topics for any discussion of a Disaster Information Network System.
This paper proposes a Never Die Network (NDN) which will consist of a Cognitive Wireless Network
(CWN) and a Satellite Network. The best possible wireless links and routes are selected out of multiple wireless networks. This proposal, first of all, puts forward a cognition cycle which has a continuous network and user changing environment. Secondly, the optimal link selection will adapt the extended Analytic Hierarchy Process (AHP) method by a change of network environment and user policy during a disaster. Then, if the network environment or user environment can be changed, a proper route selection method can be conducted by the proposed extended Ad Hoc On-Demand
Distance Vector (AODV) method with Min-Max AHP values. The simulation described in this paper contains an evaluation of the proposed methods by comparing a single ordinal wireless network system and a CWN

References: [4] N. Uchida, K. Takahata, and Y. Shibata, “Disaster information system from communication traffic analysis and connectivity (quick report from Japan Earthquake and Tsunami on March 11th, 2011),” in Proc Systems (IWDENS’12), Fukuoka, Japan. IEEE, March 2012, pp. 1043–1047. Information Network Systems (IWDENS’12), Fukuoka, Japan. IEEE, March 2012, pp. 1054–1059. Dijon, France. ACM, April 2006, pp. 1134–1138. joined RIEC (Research Institute of Electrical Communication) in Tohoku University since 1977, and he is currently a Professor of Waseda University (2012), an Emeritus Professor and Visiting Professor at the RIEC (Research Institute of Electrical Communication), Tohoku University (2010), and a member of the executive board of Future University Hakodate (2010-2012). He was the president of the IPSJ (2009-2011), the Chair of the IEEE Sendai Section (2010-2011), a fellow of the IEEE, the IPSJ, and the IEICE.