Computer Science

News and events

22 February 2012

Opportunity is the Mother of Invention - how Delay Tolerant Networking by way of social networking necessitated Data Centric Networking

Presented By Professor Jon Crowcroft, Marconi Professor of Communication Systems, University of Cambridge
  • 3.00pm
  • N112, Haslegrave Building

About this event

Abstract: In this talk, I'm going to tell the story of how a group of european researchers arrived at a design for communications software that seems rather well suited to the new "Data Center Networking" paradigm. The tale starts with moving from UCL Cambridge and choosing to learn about ad hoc networks, and then with Intel research lablet trying out a few disruptive ideas and stumbled on the notion for Haggle ("Haggle" comes from the phrase Ad Hoc Google, now really known as Opportunistic Networking) combining results from Grossglauser & Tse's work on capacity of multi-hop networks with Kevin Fall's work on Delay Tolerant Networks.

In the process of building various testbeds in the Haggle project (and three complete versions for native Java phones C# on Windows Mobile, and native Android&iPhone versions), as well as measuring various aspects of human society, we ended up with a system that appears to be rather more general than expected. Most recently, for example, it was used to build a P2P secure, disconnect tolerant version of Dropbox, as well as to track a Flu epidemic.