[Nets-seminars] UCL EE networks seminars 4th October 2013 Eric Ash Room

[Richard G. Clegg]

Our first seminar for this term is this Friday, 4th October.  It is not 
in the usual location but in the Sir Eric Ash room, room 905 in the 
Roberts building and begins at 16:00.  You need a UCL staff card to 
enter Roberts to please email me if you're coming from outside UCL and 
I'll make sure you can get in.

Our speaker is Marwan Fayed from Stirling.  As usual discussion will 
continue in the pub after the talk.

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Title:  Towards Position-based Routing for Mobile Environments

Abstract: Despite its simplicity there exists, as yet, no position-based 
routing that is suitable for dynamic networks. This, despite being 
well-studied, simple (in principle), and requiring little-to-no 
overhead. In this talk I shall present a 'first principles' 
investigation of the forwarding component according to left- or 
right-hand rule (LHR) in order to understand its limitations and 
obstacles. We find there are only five (5) possible intersecting 
configurations. Surprisingly only one (1) of these configurations 
defeats LHR, and even then only under a strict set of circumstances that 
rarely appear.

I shall then use this analysis, and our solutions so far, to suggest 
that it may be time to revisit traditional notions of path-finding 
guarantees in environments where non-routing elements are the dominant 
causes of loss.

-- 
Richard G. Clegg,
Dept of Elec. Eng.,
University College London
http://www.richardclegg.org/