The concept of data aggregation is to combine the data arriving
from different sources along the way (enroute). This allows one to eliminate redundancy, minimize the number of transmissions, and in turn, be parsimonious with
energy consumption. This routing approach shifts the emphasis from the traditional
address-centric approaches (finding short routes between pairs of addressable
end nodes) to a data-centric approach (finding routes from multiple sources to a
single destination that allows in-network consolidation of redundant data) [1.48];
see Table 1.4.