1,963 research outputs found
A Survey on Rapidly Deployable Solutions for Post-disaster Networks
International audienceIn post-disaster scenarios, for example, after earthquakes or floods, the traditional communication infrastructure may be unavailable or seriously disrupted and overloaded. Therefore, rapidly deployable network solutions are needed to restore connectivity and provide assistance to users and first responders in the incident area. This work surveys the solutions proposed to address the deployment of a network without any a priori knowledge about the communication environment for critical communications. The design of such a network should also allow for quick, flexible, scalable, and resilient deployment with minimal human intervention
RDSP: Rapidly Deployable Wireless Ad Hoc System for Post-Disaster Management
In post-disaster scenarios, such as after floods, earthquakes, and in war
zones, the cellular communication infrastructure may be destroyed or seriously
disrupted. In such emergency scenarios, it becomes very important for first aid
responders to communicate with other rescue teams in order to provide feedback
to both the central office and the disaster survivors. To address this issue,
rapidly deployable systems are required to re-establish connectivity and assist
users and first responders in the region of incident. In this work, we describe
the design, implementation, and evaluation of a rapidly deployable system for
first response applications in post-disaster situations, named RDSP. The
proposed system helps early rescue responders and victims by sharing their
location information to remotely located servers by utilizing a novel routing
scheme. This novel routing scheme consists of the Dynamic ID Assignment (DIA)
algorithm and the Minimum Maximum Neighbor (MMN) algorithm. The DIA algorithm
is used by relay devices to dynamically select their IDs on the basis of all
the available IDs of networks. Whereas, the MMN algorithm is used by the client
and relay devices to dynamically select their next neighbor relays for the
transmission of messages. The RDSP contains three devices; the client device
sends the victim's location information to the server, the relay device relays
information between client and server device, the server device receives
messages from the client device to alert the rescue team. We deployed and
evaluated our system in the outdoor environment of the university campus. The
experimental results show that the RDSP system reduces the message delivery
delay and improves the message delivery ratio with lower communication
overhead.Comment: 23 pages, 12 figures, accepted for publication in Sensors 202
Device-to-device based path selection for post disaster communication using hybrid intelligence
Public safety network communication methods are concurrence with emerging networks to provide enhanced strategies and services for catastrophe management. If the cellular network is damaged after a calamity, a new-generation network like the internet of things (IoT) is ready to assure network access. In this paper, we suggested a framework of hybrid intelligence to find and re-connect the isolated nodes to the functional area to save life. We look at a situation in which the devices in the hazard region can constantly monitor the radio environment to self-detect the occurrence of a disaster, switch to the device-to-device (D2D) communication mode, and establish a vital connection. The oscillating spider monkey optimization (OSMO) approach forms clusters of the devices in the disaster area to improve network efficiency. The devices in the secluded area use the cluster heads as relay nodes to the operational site. An oscillating particle swarm optimization (OPSO) with a priority-based path encoding technique is used for path discovery. The suggested approach improves the energy efficiency of the network by selecting a routing path based on the remaining energy of the device, channel quality, and hop count, thus increasing network stability and packet delivery
Investigating Hastily-Formed Collaborative Networks
This research explores both the human and technical aspects of the network centric environment in the context of a major disaster or incident of national significance. The National Incident Management System (NIMS) is viewed by the authors as a social network, and an organizational topology is developed to improve its effectiveness. A rapid Network Deployment Kit (RNDK) using commercial off the shelf (COTS) wireless networking technology is also proposed that facilitates immediate NIMS implementation. The integration of logical and technical analyses forms a comprehensive systems engineering proposal to facilitate collaboration in a net-centric environment. It is envisioned that the methodology used herein to derive and evaluate comprehensive networks proves extendable to other contexts thereby contributing to the netcentric body of knowledge
Rapid Response Command and Control (R2C2): a systems engineering analysis of scaleable communications for Regional Combatant Commanders
Includes supplementary materialDisaster relief operations, such as the 2005 Tsunami and Hurricane Katrina, and wartime operations, such as
Operation Enduring Freedom and Operation Iraqi Freedom, have identified the need for a standardized command and control
system interoperable among Joint, Coalition, and Interagency entities. The Systems Engineering Analysis Cohort 9 (SEA-9)
Rapid Response Command and Control (R2C2) integrated project team completed a systems engineering (SE) process to
address the military’s command and control capability gap. During the process, the R2C2 team conducted mission analysis,
generated requirements, developed and modeled architectures, and analyzed and compared current operational systems versus
the team’s R2C2 system. The R2C2 system provided a reachback capability to the Regional Combatant Commander’s (RCC)
headquarters, a local communications network for situational assessments, and Internet access for civilian counterparts
participating in Humanitarian Assistance/Disaster Relief operations. Because the team designed the R2C2 system to be
modular, analysis concluded that the R2C2 system was the preferred method to provide the RCC with the required flexibility
and scalability to deliver a rapidly deployable command and control capability to perform the range of military operations
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