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Time and Data-Driven Triggering to Emulate Cross-Layer Feedback in Opportunistic Networks
Published in Khaleel Ahmad, Nur Izura Udzir, Ganesh Chandra Deka, Opportunistic Networks, 2018
The performance of a network can be evaluated by simulation, emulation, and live experiments. However, experiments in an emulated environment provide several advantages in the case of opportunistic networks. Multi-hop mobile communication often suffers from connectivity breaks and low node density. Traditional network communication protocols may not be able to guarantee end-to-end connectivity in such cases. Delay-tolerant networking (DTN) is a communication networking paradigm that ensures reliable node-to-node communication where end-to-end connections may not be guaranteed and intermittent data come at different intervals. Simulators in such cases may provide results that are far from reality. Real-time experiments are ideal for assessing system performance before actual deployment. However, real-time systems have time and financial constraints. Moreover, systems that are designed to be deployed during disaster management or emergency conditions cannot be evaluated before the event. Network emulation is ideal in such cases. A number of emulators are available to evaluate protocols designed for opportunistic networks.
Opportunistic Networking: An Application
Published in Nazmul Siddique, Syed Faraz Hasan, Salahuddin Muhammad Salim Zabir, Opportunistic Networking, 2017
Abdolbast Greede, Stuart M. Allen
Delay-tolerant networking (DTN) is another infrastructureless network paradigm that is capable of providing communication, relaxing the need for end-to-end connectivity [5]. This is facilitated by information being stored at nodes and subsequently shared with peers when an opportunity to forward arises. When DTN was initially introduced, the popularity and advances of mobile devices were not at the stage they are today. Therefore, DTN was not specifically designed for mobile phones but in a generic form for heterogeneous wireless mobile devices that move from one place to another and employ that movement to deliver data.
A swarm intelligent approach to data ferrying in sparse disconnected networks
Published in International Journal of Parallel, Emergent and Distributed Systems, 2021
Bradley Fraser, Robert Hunjet, Andrew Coyle
Delay-tolerant networking (DTN) is a networking architecture designed to operate with networks where long delay paths and frequent network partitions are common. In the quintessential paper on the subject [9], the authors propose an architecture for challenged internets. Other literature was quickly published to propose algorithms on how data could be transferred in such DTNs.