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We consider the problem of routing in intermittently connected networks. In such networks there is no guarantee that a fully connected path between source and destination exist at any time, rendering traditional routing protocols unable to deliver messages between hosts. We propose a probabilistic routing protocol for such networks.
Research within Delay- and Disruption Tolerant Networks (DTN) has evolved into a mature research area. PRoPHET is a routing protocol for DTNs that was developed when DTN research was in its infancy and which has been studied by many. In this paper we investigate how the protocol can evolve to meet new challenges that has been identified through research and(More)
In this paper we consider the problem of routing in intermittently connected networks. In such networks there is no guarantee that a fully connected path between source and destination exists at any time, rendering traditional routing protocols unable to deliver messages between hosts. There do however exist a number of scenarios where connectivity is(More)
Emerging technologies are considering the possible use of Terahertz radiation in different fields ranging from telecommunications to biology and biomedicine. The study of the potential effects of Terahertz radiation on biological systems is therefore an important issue in order to safely develop a variety of applications. This paper describes a pilot study(More)
The aim of the present study is toinvestigate the genotoxic effect of THzradiation in human peripheral bloodlymphocytes following 20 minutes exposureto 1 mW average power Free Electron Laserradiation in the frequency range 120-140GHz. For this purpose 9 healthy donors wereemployed and cytokinesis block techniquewas applied to study micronucleusfrequency and(More)
The Sámi Network Connectivity (SNC) project was started to enable Internet connectivity for the Sámi population of reindeer herders in the Laponia region in northern Sweden. In this area, no infrastructure and thus, no Internet connectivity is normally available. Thus, DTN functionality is used to enable connectivity through the use of mobile(More)
The Sámi Network Connectivity (SNC) project works to enable Internet connectivity for the Sámi population of reindeer herders in the Laponia region in northern Sweden. In this area, no infrastructure and thus, no Internet connectivity is normally available. Thus, DTN functionality is used to enable connectivity through the use of mobile relays. This paper(More)
One of the principal design considerations in a flow switching network is the definition of a flow. Flow switching uses a network of connection oriented switches that allow flows to be cut-through on their own connection. The granularity of a flow can vary over a wide range from the very fine, for example an individual application level transaction, to the(More)
A compact THz Free Electron Laser (FEL) isbeing used to perform irradiation ofbiological samples to investigate possiblegenotoxic effects. In order to evaluate theexact radiation dose absorbed by the singlecomponents of the samples it is necessaryto study the optical properties of thesamples, separating the contributions tothe radiation attenuation(More)