Aug 222012

The recent ACM Computer Communication Review (CCR) in July 2012 featured an article that combines Turing’s fundamental work in Computer Science with recent advances in convex optimisation, establishing information-centric concepts as the ones enabling layered architectures that are robust yet cater to the fragile nature that often occurs in the Internet.

This work is a more unusual outcome of our architectural thinking within the PURSUIT project. It connects to work by Prof. John Doyle in the space of optimisation theory, although starting from Alan Turing’s fundamental 1936 theorem to proof the Entscheidungsproblem. The work connects, albeit unproven, dots laid out by these fundamental pieces of work and leads to formulate design concepts that are at the heart of layered architectures. It is here that information-centric concepts and our work in PURSUIT comes to fruition.

In case such unusual viewpoint on ICN and its potential for a wider impact on architectures in general, check out the article.

 Posted by at 00:27
Jul 102012

Since our PSIRP efforts, much work has gone into design and realisation of our vision that is the information-centric networking (ICN) Internet. PURSUIT continued this work since September 2010.

The IEEE Communications Magazine has now run a number of special issue articles on the ICN topic. The efforts in PURSUIT are represented by two articles (among 5 total articles – that’s a great achievement!), one on caching and mobility (discussed here) and one on the overall design and implementation. In the latter article by George Parisis and myself, you can find the main design tenets, the fundamental layering in our design approach as well as the realisation of all of this within our line-speed prototype Blackadder. This article, needless to say, is the result of the many discussions and the hard work of the wider PURSUIT team.

For those of you who have followed our deliverables, much of the text will be well-known. It serves, however, as an anchor point for references to our design and implementation work that can be used by ourselves and others who find the PURSUIT work relevant. It also provides some new insights into the performance of our prototype, and we also illustrate the layering tenet through a segmentation example that utilises algorithmic identification as a neat approach to relate seemingly unrelated information items through algorithmic relations that are embedded into the item identifiers.

A section that we added based on the feedback from the editors showcases how we see other ICN architectures (including today’s IP) being enabled by the design tenets that we bring forward in this article. While we haven’t gone through all of the necessary details for this enablement, we do assert that there is a common set of tenets that can enable a breadth of design choices, such as CCN/NDN, NetInf and others. What is missing, however, is a concise and deep write-up on this aspect – a long-lived exercise that keeps getting pushed down the line of writing, it seems.

Check out the article through IEEE explore or send an email for a copy.

 Posted by at 14:25
Apr 202012

Today, we published the Technical report TR12-001. In this report, we argue that there is a larger architectural and system design argumentation as to why ICN research is worthwhile pursuing. Its assertion is that ICN merely for improving content dissemination is not appealing enough. Instead, we create, in this report, a connection between the design of (information-centric) architectures and new findings in optimisation theory based development of systems and solutions. This report intends to stimulate the discussion as to why ICN research is useful and what is its architectural contribution. More is to follow…

 Posted by at 09:45
Mar 072012

The Journal of Information Policy has just published a special issue of TPRC 2010 papers, which includes a revised version of a paper from D. Trossen and A. Kostopoulos. The paper studies the tussle space that is created in an Internet that is based on information-centric networking ideas. With that, the paper provides insight into possible socio-economic implications that a paradigm shift towards PURSUIT ideas might potentially have.

The publisher’s abstract to this paper reads:

“Can the Internet be redesigned to reduce future conflicts? The Internet’s underlying architecture, Internet Protocol (IP), was introduced in 1974. Since then many ideas have been put forward about how to update and improve it. One branch of these is called “Information-Centric Networking” (ICN). Trossen and Kostopoulos note how ICN could improve the ability of the Internet to resolve conflicts between the various constellations of stakeholder interests, conflicts that they call “tussles.” Introducing a “tussle taxonomy,” they provide examples of how tussles might be resolved differently in ICN. They believe the ICN model would help rationalize pricing in a three-sided market; reduce congestion and transit costs; provide more transparency; offer more choices and possible outcomes with respect to issues such as privacy, intellectual property, and data protection; and better enable not just present but future business models that actors within the system might strive to establish.”

A PDF version of the paper can be found at the Journal’s special issue page.

 Posted by at 14:40
Feb 152012

In an attempt to bring our work closer to you, we will feature published articles in the future in this new category. These posts will include background, hypothesis, main results and ways forward of the work that has been published in a journal, conference or other venue. This is to complement your own reading of our work and will hopefully help the understanding of what we are doing in these specific works.