Since the energy model is a node attribute, it may be defined by the following node configuration APIs:
$ns_ node-config -energyModel $energymodel \
-rxPower $p_rx \
-txPower $p_tx \
-initialEnergy $initialenergy
Optional values for above configuration parameters of the energy
model are given in the following table:
| Attribute | optional values | default values |
| -energyModel | "EnergyModel" | none |
| -rxPower | receiving power in watts (e.g 0.3) | 281.8mW |
| -txPower | transmitting power in watts (e.g 0.4) | 281.8mW |
| -initialEnergy | energy in joules (e.g 0.1) | 0.0 |