23 research outputs found

    Probabilistic Routing Protocol for Intermittently Connected Networks

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    This document is a product of the Delay Tolerant Networking Research Group and has been reviewed by that group. No objections to its publication as an RFC were raised. This document defines PRoPHET, a Probabilistic Routing Protocol using History of Encounters and Transitivity. PRoPHET is a variant of the epidemic routing protocol for intermittently connected networks that operates by pruning the epidemic distribution tree to minimize resource usage while still attempting to achieve the best-case routing capabilities of epidemic routing. It is intended for use in sparse mesh networks where there is no guarantee that a fully connected path between the source and destination exists at any time, rendering traditional routing protocols unable to deliver messages between hosts. These networks are examples of networks where there is a disparity between the latency requirements of applications and the capabilities of the underlying network (networks often referred to as delay and disruption tolerant). The document presents an architectural overview followed by the protocol specification

    The Evolution of a DTN Routing Protocol - PRoPHETv2

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    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 practical experience. We propose some minor modifications to the routing metric cal- culations done in PRoPHET which has potential to alleviate some issues and improve the performance of the protocol. Using these modifications, we define an updated version of the protocol called PRoPHETv2. We run simulations to verify the operation of the protocol and compare its performance against the original version of the protocol as well as some other routing protocols. The evalua- tions are done using both traces from an existing DTN deployment and a synthetic mobility model. Since the basic mechanisms of the protocol remain the same, migrating existing implementations to the new version of PRoPHET is possible with limited effort

    What do the words “Internet Security” mean?

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    Internet security is frequently discussed, but if you ask someone what they mean by it, you may get many different and sometimes contradictory answers. Security has become an overloaded term used by many in various differing ways.Internet Security ofta diskuteras, men om du frågar någon vad de menar med det, kan du få många olika och ibland motstridiga svar. Säkerhet har blivit en överlastad term som används av många i flera olika sätt.Godkänd; 2007; 20100223 (avri

    A very brief guide to Internet Governance and the emerging organization of multi stakeholder participation

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    One result of the 4 year World Summit on Information Society (WSIS) was the formation of the multistakeholder Internet Governance Forum (IGF). This forum is a radically new form of organization for the UN as it allows for participation by the various stakeholders of the Internet, as opposed to being restricted to government representatives. Internet governance is a relatively new area of discourse that is becoming a hot issue of international dialogue. This paper briefly discusses the origins of the debate and the meaning of Internet Governance as well as outlining some of the ongoing activities in this area. The paper also discusses some ways in which the reader can get involved in the debate and why they may want to.Godkänd; 2006; 20061218 (ysko)</p

    Internet Governance Forum the first two years

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    Proceedings of the first two years of the Uninited Nations Internet Governance Forum (IGF)Arbetet de första två åren av initierad nationernas Internet Governance ForumGodkänd; 2008; 20100223 (avri)</p

    Internet technology and networks

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    This handbook aims to take the mystery out of ICT policy and make it easier to understand. In particular, it aims to build the capacity of those who want to understand more about the issues surrounding policy on ICT development and regulation, to grasp the policy process, and to become more involved as informed participants.Denna handbok syftar till att ta hemligheten av IKT och göra det lättare att förstå. I synnerhet syftar det till att bygga upp kapaciteten hos dem som vill förstå mer om frågor kring politik för IT-utveckling och reglering, för att förstå den politiska processen, och att bli mer inblandade informerade deltagarna.Godkänd; 2009; 20100223 (avri
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