2024-03-30T00:33:19Zhttps://ipsj.ixsq.nii.ac.jp/ej/?action=repository_oaipmhoai:ipsj.ixsq.nii.ac.jp:000771812024-03-29T05:26:34Z01164:03865:06341:06517
Timely In-Network Data Aggregation in Disaster AreasTimely In-Network Data Aggregation in Disaster Areaseng情報収集、情報集約http://id.nii.ac.jp/1001/00077181/Technical Reporthttps://ipsj.ixsq.nii.ac.jp/ej/?action=repository_action_common_download&item_id=77181&item_no=1&attribute_id=1&file_no=1Copyright (c) 2011 by the Information Processing Society of JapanGraduate School of Information Science, Nara Institute of Science and TechnologyGraduate School of Information Science, Nara Institute of Science and Technology/Japan Science and Technology Agency, CRESTDepartment of Information Processing and Management, Shiga University/Japan Science and Technology Agency, CRESTGraduate School of Information Science, Nara Institute of Science and Technology/Japan Science and Technology Agency, CRESTGraduate School of Information Science, Nara Institute of Science and TechnologyJovilynThereseB.FajardoKeiichi, YasumotoNaoki, ShibataWeihua, SunMinoru, ItoA common characteristic in disaster areas is the partial or complete failure of the telecommunications infrastructure. This study proposes the use of mobile phones of the people to serve as sensing nodes for collecting disaster-related information in the affected area. Existing delay tolerant network (DTN) technologies allow propagation of disaster-related information created by the people to some extent, but it is difficult to achieve coverage of the area of interest (AoI) by the obtained messages in a short time due to the small data transfer capacity of a DTN. In this paper, a DTN-based data aggregation method is proposed that achieves the AoI coverage in minimal time by merging multiple messages (obtained through DTN) and their affected areas into a new message with the merged area. To keep sufficient details of the aggregated messages, the query sender can specify the maximum area size covered by each message. The evaluation method of the proposed method is also shown.A common characteristic in disaster areas is the partial or complete failure of the telecommunications infrastructure. This study proposes the use of mobile phones of the people to serve as sensing nodes for collecting disaster-related information in the affected area. Existing delay tolerant network (DTN) technologies allow propagation of disaster-related information created by the people to some extent, but it is difficult to achieve coverage of the area of interest (AoI) by the obtained messages in a short time due to the small data transfer capacity of a DTN. In this paper, a DTN-based data aggregation method is proposed that achieves the AoI coverage in minimal time by merging multiple messages (obtained through DTN) and their affected areas into a new message with the merged area. To keep sufficient details of the aggregated messages, the query sender can specify the maximum area size covered by each message. The evaluation method of the proposed method is also shown.AA11851388研究報告モバイルコンピューティングとユビキタス通信(MBL)2011-MBL-593182011-08-292011-08-23