1. [1] NTT NEWS RELEASE March 30, 2011. http://www.ntt.co.jp/news2011/1103e/110330a.html
2. [2] T. Hirose, K. Ohta, Y. Imaizumi, and H. Yoshida, “Satellite Communication Systems Used in Disaster Recovery Operations,” IEICE Technical Report, SAT2011-57, pp.109-113, 2011.
3. [3] T. Hirose, T. Nakamura, Y. Shindo, and H. Yoshia, “ Wireless access systems used in disaster recovery operations after the Great East Japan Earthquake and tsunami,” ICC 12, 2012.
4. [4] K. Harada, T. Tashiro, Y. Yamashita, and T. Otsu, “Portable User Earth station for DYANET II,” B-226, The 1995 IEICE General Conference, 1995. (in Japanese)
5. [5] M. Nakatsugawa, F. Nuno, and T. Hirose, “Wireless Systems for Disaster Recovery Operations that Contribute for Quick Recovery from Large-Scale Disasters,” TK-4-3, The 2015 IEICE General Conference, 2015. (in Japanese)