Toronto Networking Seminar

Organized by Department of Computer Science and Department of Electrical and Computer Engineering, University of Toronto

MOBIBRITE: An Architecture for Cost Efficient User Generated Content Sharing in Mobile Systems

Aruna Seneviratne
University of New South Wales
and NICTA ATP Research Laboratory

Date: Oct. 4,  2:10pm
Location: BA 7180 (Bahen Centre)


With the availability of more powerful mobile devices there is significant rise in user generated content (UGC). This is clogging up of current cellular networks. It is also clear that the traffic due to UGC is going to continue to grow, and despite the availability of new 4G networks, will exacerbate the problem of congestion in cellular networks. One approach that has been explored by a number of groups to address the problem of congestion due to UCG is data off loading, where some of the data is transmitted over other type of networks, for example WiFi networks. A number of studies have shown that off loading of traffic to WiFi net- works as the potential to significantly reduce the load on cellular networks. However, there is growing evidence that, in the case of off loading to WiFi networks it can only be effectively achieved under special circumstances. This talk will review some of the recent proposals and show the requirements for achieving effective data off loading. Then it will present a novel way of distributing user generated by exploiting the time elasticity of UGC and pre-distributing content to groups of mobile devices. We will present architecture of the proposed system, which we refer to as Mobitribe, and show viability of the effectiveness of the proposed scheme using some real life data sets.


Aruna Seneviratne received his PhD in electrical engineering from the University of Bath , UK, in 1982. He is currently the director of the NICTA Australian Technology Park Laboratory, in Sydney, Australia. He has held academic appointments at the University of Bradford, UK, Curtin University, University of Technology, Sydney and the University of New South Wales in Australia. He has also held visiting appointments at the University of Pierre Marie Curie, Paris, and INRIA, Nice in France. In addition he has been consultant to numerous organizations, including Telstra, Vodafone, Inmarsat and Ericsson.