Rescue Support System with DTN for Earthquake Disasters

Matsuzaki, Ryosuke; Ebara, Hiroyuki; Muranaka, Noriaki

doi:10.1587/transcom.e98.b.1832

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…It was initially designed for interplanetary communications in space [13], given the number of disconnections that this network suffers. However, over the years, many other types of terrestrial networks have emerged in response to similar problems (e.g., underwater networks [14], wildlife tracking networks [15], sparse wireless sensor networks [16], and vehicular networks [17]).…”

Section: Delay Tolerant Networkmentioning

confidence: 99%

DTN Trustworthiness for Permafrost Telemetry IoT Network

2021

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The SHETLAND-NET research project aims to build an Internet of Things (IoT) telemetry service in Antarctica to automatize the data collection of permafrost research studies on interconnecting remote wireless sensor networks (WSNs) through near vertical incidence skywave (NVIS) long fat networks (LFN). The proposed architecture presents some properties from challenging networks that require the use of delay tolerant networking (DTN) opportunistic techniques that send the collected data during the night as a bulk data transfer whenever a link comes available. This process might result in network congestion and packet loss. This is a complex architecture that demands a thorough assessment of the solution’s viability and an analysis of the transport protocols in order to find the option which best suits the use case to achieve superior trustworthiness in network congestion situations. A heterogeneous layer-based model is used to measure and improve the trustworthiness of the service. The scenario and different transport protocols are modeled to be compared, and the system’s trustworthiness is assessed through simulations.

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Section: Delay Tolerant Networkmentioning

confidence: 99%

DTN Trustworthiness for Permafrost Telemetry IoT Network

2021

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“…Examples of these events are earthquakes, tsunamis, hurricanes, tornadoes, and floods. The networking research community predominantly promotes DTNs to support emergency response and recovery efforts, for example, in the process of victim's location, situation awareness, and emergency notifications [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effective communication for message prioritization in DTN for disaster scenarios

Rosas

Andrade

Hidalgo

2022

Peer-to-Peer Netw. Appl.

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When disaster strikes, effective communication is crucial for emergency responses and accessing a victim's location. Using smartphonebased Delay Tolerant Networks (DTNs) is the prevalent proposed approach to work around network disruptions. One of the challenges in these networks is high-traffic congestion, since buffer limitation produces message drop before they are delivered. In this article, a congestion control strategy using message prioritization is presented for DTNs to increase network resilience facing high message congestion. We measure congestion considering the free space in the buffers of the nodes involved in the routing or by counting the messages deleted from the buffer in a fixed period to improve the availability and immediacy of information for disaster scenarios. We evaluated the proposed strategies using The ONE simulator to test different mobility models and communication protocols. Results show that the strategy improved delivery rate, buffer usage, eliminated messages, overhead, and latency for the highest priority messages. The best results were obtained in terms of latency, which fits our disaster scenario since timely information is vital. The trade-offs are a slightly lower average delivery rate and a decrease in the lowest priority message delivery rate.

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