1 Web DTN DTN 2. 2 DTN DTN Epidemic [5] Spray and Wait [6] DTN Android Twitter [7] 2 2 DTN 10km 50m % %Epidemic 99% 13.4% 10km DTN [8] 2

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1 DEIM Forum 2014 E7-1 Web DTN UCLA Computer Science Department 3803 Boelter Hall, Los Angeles, CA , USA Web Web Web DTN API Android Web DTN Android A Proposal of a DTN Framework to Build up Disaster-tolerant Web Applications Yuka HASEGAWA, Mineo TAKAI, and Masato OGUCHI Ochanomizu University Otsuka, Bunkyo, Tokyo, Japan UCLA Computer Science Department 3803 Boelter Hall, Los Angeles, CA , USA yuka@ogl.is.ocha.ac.jp, mineo@cs.ucla.edu, oguchi@computer.org 1. Web LINE [1] Facebook [2] Twitter [3] Web Web (DTN Delay/Disruption Tolerant Networking) [4] DTN DTN Web DTN Web Android iphone Web 2. Web Web

2 1 Web DTN DTN 2. 2 DTN DTN Epidemic [5] Spray and Wait [6] DTN Android Twitter [7] 2 2 DTN 10km 50m % %Epidemic 99% 13.4% 10km DTN [8] 2

3 DTN Web Web DTN Web DTN API Web DTN2 [9] IBR-DTN [10] DTN API DTN Web DTN HTTP HTTP DTN [11] [12] DTN Web DTN DTN Web Web Web DTN Web Twitter Facebook DTN Web Web DTN Web 3. Web Web DTN Web DTN

4 4 5 6 Web API 7 8 DTN Android 4. Scenargie [13] Epidemic m 30m KB 10KB TCP (NewReno) LAN IEEE802.11g 1 10 DTN ( )* : 4 1 Direct Delivery 2 Epidemic Direct Delivery Direct Delivery DTN : , 10 1KB KB Epidemic 324 Epidemic Epidemic Epidemic 50 1 Epidemic 50 Epidemic 6

5 7 2: 6 1: DTN TCP 50 Epdemic GB 0.16GB Epidemic 10 Epidemic Epidemic : KB 5000, KB KB 10KB 100KB TCP (NewReno) LAN IEEE802.11g 7 Epidemic 100KB : Epidemic DTN 4. 4 Epidemic Epidemic

6 5. Web API Web API 5. 1 API Web DTN API sendmessage(appid, message) responsecallback(response) messagecallback(appid, message) requestresponsecallback(appid) 9 API 9 API API sendmessage(appid, message) Message ID sendmessage ID ID Twitter Twitter ID Facebook Facebook ID responsecallback(response) Response Response messagecallback(appid, message) Message ID Message Message requestresponsecallback(appid) Response Response 5. 2 API Twitter API Twitter Twitter ID sendmessage responsecallback messagecallback requestresponsecallback Twitter ID Wi-Fi

7 10 3 Message RequestResponse Response NotifyLocation NotifyDestination Response ID sendmessage (1) ID ID Twitter Twitter ID Facebook Facebook ID ID Message Wi-Fi Message (2) Response RequestResponse (3) RequestResponse Response Response RequestResponse ID ID Response GPS RequestResponse ID NotifyLocation Message NotifyLocation (4)(5) 11 NotifyLocation ID Message ID (6). Message ID messagecallback NotifyDestination (7) (8) requestresponsecallback ID (9) Response (10) Response Wi-Fi RequestResponse (11) Response Response (12) Response (13) responsecallback Response

8 7. 12 Android Google App Engine Android 13 Android 7. 1 Android Android ID sendmessage responsecallback 7. 2 messagecallback ID requestresponsecallback ID 8. Web DTN Web API DTN Android Response [1] LINE, [2] Facebook, [3] Twitter, [4] Kevin Fall. A delay-tolerant network architecture for challenged internets. Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications, pp.27-34, ACM, [5] Amin Vahdat and David Becker. Epidemic routing for partially connected ad hoc networks. Technical Report CS , pp.18, Duke University, [6] Spyropoulos, Thrasyvoulos, Konstantinos Psounis, and Cauligi S. Raghavendra. Efficient routing in intermittently connected mobile networks: the multiple-copy case. Networking, IEEE/ACM Transactions on 16.1, pp.77-90, [7], et al. DTN.. MoMuC, , pp , [8] Wenrui Zhao, Mostafa Ammar and Ellen Zegura. A message ferrying approach for data delivery in sparse mobile ad hoc networks. Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing, pp , ACM, [9] DTN2, [10] IBR-DTN, [11] Jorg Ott and Dirk Kutscher. Bundling the Web: HTTP over DTN. In Proc. Workshop on Networking in Public Transport, [12] Zoebir Bong, Peng Boon Sng and Chai Kiat Yeo. Web Access over Delay Tolerant Networks. International Journal of Future Computer and Communication, Vol.1, No.2, pp , [13] Scenargie,

DTN DTN DTN DTN i

DTN DTN DTN DTN i 28 DTN Proposal of the Aggregation Message Ferrying for Evacuee s Data Delivery in DTN Environment 1170302 2017 2 28 DTN DTN DTN DTN i Abstract Proposal of the Aggregation Message Ferrying for Evacuee

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