Archive for March, 2009

Simons Subgroup Meeting 02 Mar 2009

March 2nd, 2009 No comments

Today I met with Simon and his subgroup, to which I have become an adopted member, to get some feedback about my PhD direction.

I had previously met them and gave a 25 word overview of my PhD topic. At that time they were very helpful in giving feedback about the viability of my topic, and we suggested that at the next meeting we would talk in more detail about myself and Olga’s research.

At this meeting, I gave an overview that I was interesting in researching what the combination of social networks, and personal devices, to create a Delay Tolerant Network technique that uses the properties, facets and behaviours of human networks and mobility to send messages. With a view to using this network for metropolitan area environmental sensing.

I described my thoughts that we are reliant upon a infrastructure for our networking needs today, but there are various costs to this. To the user, to the providor, and perhaps to the environment. I gave some rough calculations as to the cost of deploying 1000 motes for a year which based their reporting communications on 3G networking, and whilst an individaul mote only used approx 240kb per day of bandwidth, this equated to 85GB per year, at a roughly estimated cost of 42,000 euros per year.

I said that I felt it is feasible to deploy some other mechanism for comunications that utilises the power in our pockets. I asked for confirmation that this was a valid topic, and that there was enough scope for research in this to make it a valid topic.

The general feeling was that there were some novelties in this, and Davide (Cellai) gave a very good explanation of similar problems in nature (Protein Interaction Networks) and felt that the science was in finding a way to describe such dynamic networks, and that there was allready a lot of research in static networks, but not in these dynamic ones.

Point 1: There is no formal language to describe dynamic networks/ the dynamics of networks

Question 1: How do you descibe how a network is evolving?

Question 2: What parameters do you need/have to describe?

Cosideration 1:  Failure models

Simon pointed out that this type of research is validated by NASA who are looking for ways to use DTN in swarm based autonomous missions to mars/space. Whilst this is not directly related (due to a lack of social networks), the ideas can still be used.

Davide also pointed out that in his and Graeme’s research, they have identified that mobility models provide a structure to, and therefore affect, dynamic networks, and that there is an area of research in this space. (which confirms my previous thoughts and efforts towards generating a reliable mobility model)