Analysis of Radio Wave Propagation in an Urban Environment and its Application to Initial Disaster Response Support
Youhei Kawamura*1, Hyongdoo Jang*2, Markus Wagner*3, Hajime Nobuhara*1, Ashraf M. Dewan*4, Bert Veenendaal*4, and Itaru Kitahara*1
*1Faculty of Engineering, Information and Systems, University of Tsukuba
1-1-1 Tenoudai, Tsukuba, Ibaraki 305-8573, Japan
*2Department of Mining Engineering, Curtin University, Kalgoorlie, Australia
*3School of Computer Science, University of Adelaide, Adelaide, Australia
*4Department of Spatial Sciences, Curtin University, Perth, Australia
When disasters strike, it is important to quickly collect and analyze disaster-related information immediately after the event. We have suggested ZigBee and geographic information systems (GIS) technologies to resolve these problems and provide an effective communications system. In this paper, a method for the rapid setup of short-range wireless networks infrastructure, which estimates the radio wave propagation and optimizes the positions of transmitters is proposed. Our estimation method is experimentally verified, and it combines ray-tracing with preliminarily obtained statistical attenuation information, which allows us to consider different types of the land and its elevation. Thus, we can determine the effective ranges for radio communication for each potential location in the actual environment. This information is then used in our optimization procedure to reduce the number of transmitters needed to establish connections.
-  T. Kanayama and R. Tokumoto, “Report of the great eastern Japan earthquake,” Report of NKSJ-RM, Vol.52, pp. 1-12, 2011.
-  H. Sugita, T. Fukuta, M. Tamura, T. Yokoi, T. Hara, T. Kashima, T. Azuhata, B. Shibasaki, and Y. Yagi, “Development of iisee-net for earthquake disaster mitigation of developing countries,” Bulletin of the Int. Institute of Seismology and Earthquake Engineering, pp. 137-143, 2003.
-  T. Sato, “Reliability on docomo network-system for no intermittent service, based on influence of the sanrikuminami earthquake,” Journal of Reliability Engineering Association of Japan, Vol.26, No.3, pp. 199-205, 2004.
-  T. Sato, “Proposal of a new method of telecommunication in earthquake disaster prevention system,” Report of Railway Technical Research Institute, Vol.21, No.1, pp. 43-48, 2004.
-  T. Sakano, Z. Md. Fadlullah, T. Ngo, H. Nishiyama, M. Nakazawa, F. Adachi, N. Kato, A. Takahara, T. Kumagai, H. Kasahara, and S. Kurihara, “Disaster-Resilient Networking: A New Vision Based on Movable and Deployable Resource Units,” IEEE Network Magazine, Vol.27, No.4, pp. 40-46, 2013.
-  H. Nishiyama, M. Ito, and N. Kato, “Relay-by-Smartphone: Realizing Multi-Hop Device-to-Device Communications,” IEEE Communications Magazine, Vol.52, No.4, pp. 56-65, 2014.
-  Y. Kawamura, A. M. Dewan, B.Veenendaal, T. Shibuya, M. Hayashi, I. Kitahara, H. Nobuhara, and K. Ishii, “Using GIS to develop a mobile communications network for disaster-damaged areas,” Int. Journal of Digital Earth, Vol.7, No.4, pp. 279-293, 2014.
-  M. Iskander and Z. Yun, “Propagation prediction models for wireless communication systems,” IEEE Trans. on Microwave Theory and Techniques, Vol.50, No.3, pp. 662-673, 2002.
-  T. Hayashi, A. Yamamoto, K. Ogawa, and G. Pedersen, “An analysis of radio propagation characteristics using ray-tracing techniques on an outdoor propagation experiment,” Denshi Jouhou Tsuushin Gakkai Gijutsu Kenkyuu Houkoku, Vol.5, pp. 7-12, 2008.
-  D. G. Rodrigueza and Y. Miyazaki, “Analysis of electromagnetic scattering in large areas using a parallel FDTD method,” Institute of Electronics, Information and Communication Engineers (ICICE) Technical Report, Vol.100, No.157, pp. 29-34, 2000.
-  T. Imai, “Novel ray-tracing acceleration technique employing genetic algorithm for radio propagation prediction,” Antennas and Propagation, EuCAP 2006 First European Conf., pp. 1-6, 2006.
-  Y. Nakahata and Y. Kawamura, “Development of the landslide observation system using ZigBee,” Society of Instrument and Control Engineers Annual Conf. (SICE), pp. 1191-1194, 2010.
-  K. Ishii, Y. Kawamura, H. Nobuhara, M. Hayashi, and K. Sawase, “Optimum arrangement of mobile communication terminals using GIS for applying to support initial response to disasters,” SSI2012, (CD-ROM), 2012.
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