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Distinguishing between connectivity, intermittent connectivity, and intermittent disconnectivity

Published: 14 September 2007 Publication History

Abstract

Research in Challenged Networks is evolving nicely. Starting with early research in Interplanetary Networks and disconnected ad hoc networks, more recent research efforts have focused on the challenges of novel network architectures like delay tolerant mobile networks, vehicular, and underwater networks. One particular aspect of interest is the seemingly insignificant, yet important distinction between the philosophies of connectivity, intermittent connectivity, and intermittent disconnectivity. Assuming a different connectivity model has profound and often unexpected effects on a wide variety of system characteristics. The lesson going forward, therefore, is the suggestion that the research community should continue to disregard long-held assumptions while also finding ways to evolve network architectures in a way that expand opportunities for novel modes of communication. The goal of this talk is to offer opinions, insight, and direction for three areas of perceived need. These are:
1. The need to focus research attention beyond network layer issues, i.e., the need to focus on aspects of data transport and applications.
2. The need to work on network architectures that are realistic within the particular environments of their deployment, e.g., sparse networks with intermittent disconnectivity and multiple egress points.
3. The need to work in areas that leverage efforts to (radically) re-think the fundamental design of the Internet, e.g., cross-layer protocol and clean-slate architectures.
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Within these themes, this talk will briefly review some exemplary systems and applications, and then identify the aspects that are most relevant to Challenged Networks.

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cover image ACM Conferences
CHANTS '07: Proceedings of the second ACM workshop on Challenged networks
September 2007
108 pages
ISBN:9781595937377
DOI:10.1145/1287791
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 14 September 2007

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  1. delay tolerant networks

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MobiCom/MobiHoc '07
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Overall Acceptance Rate 61 of 159 submissions, 38%

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