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The Future of Wide Area Networks
Published in Marcus K. Weldon, The Future X Network, 2018
T.V. Lakshman, Kevin Sparks, Marina Thottan
Domestic telecommunication networks connect together in order to extend services beyond the boundaries of any individual provider’s network and ultimately across the globe. Indeed, ubiquitous reachability is a fundamental value proposition for these networks, consistent with Metcalfe’s Law.5
Analysing dynamic work systems using DynEAST: a demonstration of concept
Published in Ergonomics, 2023
Matt Holman, Guy Walker, Terry Lansdown
Reachability refers to the ability of one node to connect to another via a link or set of links. In the case of temporal multi-layered networks, the reachability of nodes can apply at intra and inter layer levels. In the context of the case study, therefore, reachability can be applied from agent-to-agent (intralayer), information-to-information (intralayer) and agent-to-information (interlayer) nodes. When considering dynamic networks, the reachability of nodes evolves as nodes and links appear and disappear as the network reconfigures over time. Thus, in dynamic networks, reachability of one node to another does not necessarily persist over time. Rather, node reachability is bounded by the presence of discrete node contact instances; links between nodes are only valid during a defined time interval (Holme and Saramäki 2012). DynEAST, which represents work systems as a dynamic multi-layered network, can therefore be used to model the dynamic interlayer reachability of information by individual agents.
Temporal networks: a review and opportunities for infrastructure simulation
Published in Sustainable and Resilient Infrastructure, 2022
Mohamed Salama, Mohamed Ezzeldin, Wael El-Dakhakhni, Michael Tait
Reachability is also key for simulating the structure of any static or temporal network. In general, reachability describes the connectivity between any two nodes. For example, node F is directly reachable from node A, if and only if there is one direct link, without any bridge nodes, between nodes F and A. If node F is connected to node A through other bridge nodes, then node F is indirectly reachable to node A (Nicosia et al., 2013).