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SUMMARY: Selective Code Update on Mobile Wireless Sensor Networks - Bence 
 Pazstor\, University of Cambridge Computer Laboratory
DTSTART:20080506T120000Z
DTEND:20080506T130000Z
UID:TALK12154@talks.cam.ac.uk
CONTACT:Henry Robinson
DESCRIPTION:As we observe a wider and wider deployment of Wireless Sensor 
 Networks. In many cases\, these systems are deployed in remote areas for e
 nvironmental/wildlife monitoring purposes\, and involve tens or even hundr
 eds of sensors. They are expected to work without much human intervention\
 , and for as long as possible. So far\, the majority of these networks are
  not reusable or adaptive\, in the sense that once the sensors are deploye
 d\, they cannot easily be reprogrammed unless someone collects them and co
 nnects them to a computer. This task is even more difficult (if not imposs
 ible) if the devices are attached to mobile entities or animals as these c
 annot easily be recollected. The current (few) solutions of the distributi
 on of new code on a mobile sensor networks involved epidemic-like spreadin
 g of the code over the network. In this talklet I present a group-based co
 de-dissemination protocol\, which takes advantage of the dynamically built
  knowledge about the social relationships between the nodes to efficiently
  distribute the code\; and a proposed system to selectively update specifi
 c subsets of the network.\n
LOCATION:Computer Laboratory\, William Gates Building\, Room FW11
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