Figure 1 depicts the energy consumption of the network
versus number of nodes and speed of nodes. On demand
routing protocols (DSR, AODV) consumes more energy as
compared to table driven protocol (DSDV). DSR performs
better than AODV although uses source routing. It might be
due to caching mechanism used in DSR which reduces the
discovery routes overhead. The energy consumption due to
routing overhead of DSR is negligible as compared to AODV.
Figure 1 (a) shows that the energy consumption decrease with
the increase of nodes, while in Figure 1 (b) the variation in
energy consumption of AODV at different speed is minimum,
hence can easily handle the network changes.