Figure 2From: Source positioning in a large-scale tiny-sensor network of arbitrary topologyAggregation of the occupied nodes for h = 20 in the 2D lattice characterised by p occ  = 0 . 5. The blank sites are drawn in white; the occupied sites are shown in black. The sites, which belong to the aggregation, are depicted in light grey, while the origin node is displayed in dark grey.Back to article page