Thomas Kunz
Systems and Computer Engineering
4
Energy Model
nAssumption: only wireless interface consumes energy
(i.e., internal processing of
messages etc. is “free”)
nNS2 has (simplistic) energy model: “The energy model in a node has a initial value which is the level of energy
the node has at the
beginning of the simulation. This is known as initialEnergy. It also has a given energy usage for
every packet it transmits and
receives. These are called txPower and
rxPower”
nDefault IDLE energy consumption is zero, send/receive costs independent of packet size, unicast/broadcast,
etc.