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SUMMARY:Towards Position-based Routing for Mobile Environments -  Dr Marwa
 n Fayad  - Univ Stiling
DTSTART:20131016T131500Z
DTEND:20131016T141500Z
UID:TALK47196@talks.cam.ac.uk
CONTACT:David Greaves
DESCRIPTION:Routing in dynamic wireless networks is problematic\, presenti
 ng challenges that are poorly addressed by Internet-style addressing and r
 outing. In static wireless networks\, position-based mechanisms promise si
 mple (in principle) solutions requiring little-to-no overhead. Despite the
 ir simplicity\, there exists as yet no position-based routing that is suit
 able for dynamic networks.\n\nIn this talk I shall focus on a well-studied
  forwarding component for position-based routing called left- or right-han
 d rule (LHR). I will present a 'first principles' investigation in order t
 o understand its limitations and obstacles. This reveals that there are on
 ly five (5) possible intersecting configurations. Surprisingly only one (1
 ) of these configurations defeats LHR universally\, and even then only und
 er 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 r
 evisit traditional notions of path-finding guarantees in environments wher
 e non-routing elements are the dominant causes of loss.
LOCATION:Lecture Theatre 1\, Computer Laboratory
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