GPS free coordinate assignment and routing in wireless sensor networks

To this purpose we introduce the Virtual Coordinate assignment protocol which defines a virtual coordinate system based on hop distances

A. Caruso; S. Chessa; S. De; A. Urpi

2005

Scholarcy highlights

  • A sensor network is a specialized ad hoc network composed by a large number of low power, low cost nodes
  • In particular we focus on sensor networks composed by a very large number of sensors, deployed with relatively high density in the sensing field, and where the sensors do not have any information about the network boundary and position
  • In this scenario we introduce a new Virtual Coordinate assignment protocol to support geographic routing which defines coordinates exclusively based on hop distances
  • For a given density of the network, this coordinate system is consistent, i.e., nodes with the same coordinates lie within a limited number of hops from each other, and we show by simulation that this coordinate system can efficiently support geographic routing
  • In this paper we have considered the problem of constructing a coordinate system in a sensor network where location information is not available
  • We have introduced the Virtual Coordinate assignment protocol protocol which selects three anchors to define a virtual nate system using more realistic simulation models and considering mobility
  • 0.9 study of routing protocols more suitable to the virtual

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