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Desynchronization in Multi-Hop Topologies: A Challenge
9. GI/ITG KuVS Fachgespräch Drahtlose Sensornetze, стр. 21--24. Würzburg, Germany, Universität Würzburg, Institut für Informatik, (сентября 2010)urn:nbn:de:bvb:20-opus-51106.
Аннотация
The biologically inspired primitive desynchronization was successfully
implemented and tested within single-hop topologies in form of the
self-organizing TDMA protocol DESYNC for wireless sensor networks
(WSNs). Two extensions of that MAC protocol for multi-hop topologies
have been discussed, but either the extended protocol is not all-purpose
but specified for just a specific subset of multi-hop topologies,
or each node has to broadcast all of its neighboring information
at every single packet, which enlarges the packet size and thus consumes
additional energy and bandwidth. One reason for this limitation,
and packet overhead respectively, is the hidden terminal problem
which is inherent in all multi-hop topologies. In this paper we compare
the characteristics of single-hop and multi-hop topologies with respect
to the primitive of desynchronization. We will further analyze one
special multi-hop topology in detail, which not only shows the complexity
of a multi-hop desynchronization, but also provides new opportunities
to support all sorts of multi-hop topologies with reduced overhead
for the neighboring information.
