Presentation 2016-03-03
Two-tier Data Collection Scheme for Real-Spatial Group Communication among Mobile Nodes
Hitomi Fuji, Kazuya Tsukamoto, Yuji Oie, Akira Nagata, Katsuichi Nakamura,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently, a demand for flexible group communication considering the information of users' location and property is increasing drastically.To achieve this, we propose r-Space system mainly consisted of (1) (users') data collection and (2) data delivery. In this research, we focus on (1) that can apply to mobile nodes. Since r-Space system delivers application data to group users by using the information obtained at (1) in advance, the information should be maintained as much as possible.Therefore, we proposed a two-tier data collection scheme in which several nodes with similar moving pattern autonomously create group based on the condition of received periodical broadcast messages, and selects the representative nodeused for data delivery later (delivery rep. node). Furthermore, we utilize another representative nodes for data collection (collection rep. node), which are determined for individual geographical certain area (same as our previous work).Through simulation experiments, we showed that our proposed scheme can reduce number of messages transmitted on wide area wireless network by 92{%}, compared with that of case of delivery rep. nodes only, while maintaining the collected information until data delivery timing.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) real-space information / data collection / group communication / mobile nodes
Paper # NS2015-180
Date of Issue 2016-02-25 (NS)

Conference Information
Committee NS / IN
Conference Date 2016/3/3(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Phoenix Seagaia Resort
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Atsushi Hiramatsu(NTT-AT) / Hidetsugu Kobayashi(NTT)
Vice Chair Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.)
Secretary Hideki Tode(Univ. of Fukui) / Katsunori Yamaoka(NTT)
Assistant Shohei Kamamura(NTT) / Yuichi Sudo(NTT) / Kunitake Kaneko(Keio Univ.)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Two-tier Data Collection Scheme for Real-Spatial Group Communication among Mobile Nodes
Sub Title (in English)
Keyword(1) real-space information
Keyword(2) data collection
Keyword(3) group communication
Keyword(4) mobile nodes
1st Author's Name Hitomi Fuji
1st Author's Affiliation Kyushu Institute of Technology(KIT)
2nd Author's Name Kazuya Tsukamoto
2nd Author's Affiliation Kyushu Institute of Technology(KIT)
3rd Author's Name Yuji Oie
3rd Author's Affiliation Kyushu Institute of Technology(KIT)
4th Author's Name Akira Nagata
4th Author's Affiliation Kyushu Institute of Technology(KIT)
5th Author's Name Katsuichi Nakamura
5th Author's Affiliation Kyushu Institute of Technology(KIT)
Date 2016-03-03
Paper # NS2015-180
Volume (vol) vol.115
Number (no) NS-483
Page pp.pp.71-76(NS),
#Pages 6
Date of Issue 2016-02-25 (NS)