Securing SOS Messages in Uncommunicable Areas via Information Sharing Cluster

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  • ZAMORA Louie
    Internet Engineering Laboratory, Nara Institute of Science and Technology
  • SUZUKI Noriyuki
    Internet Engineering Laboratory, Nara Institute of Science and Technology
  • TAKEMOTO Hiroaki
    Internet Engineering Laboratory, Nara Institute of Science and Technology
  • KASHIHARA Shigeru
    Internet Engineering Laboratory, Nara Institute of Science and Technology
  • YAMAGUCHI Suguru
    Internet Engineering Laboratory, Nara Institute of Science and Technology

Abstract

A prompt rescue is a serious operation when a catastrophic disaster occurs. In an uncommunicable area where the existing communication systems are damaged, it is, however, difficult to collect SOS messages of victims. So far, we have proposed a smartphone application named SOSCast to collect SOS messages via device-to-device transmission in such an area. However, with the limitation of coverage area and battery consumption, it decreases the possibility of finding the victim due to the risk of losing the SOS messages. In this paper, thus, we propose an information-sharing cluster to virtually extend the communication coverage area and to secure the SOS messages by reducing the battery consumption. In the performance evaluation, compared with the original SOSCast, we showed that the proposed method can reduce battery consumption to secure the message through a prototype system and simulation experiments.

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