Where Esend(l,d) is node’s energy consumption send l bits
data,ER(l) is node’s energy consumption receive l bit data,Eelec
represents the energy consumption of wireless transceiver
process 1 bit data, what do εfs and εamp stand for two different
model power amplification coefficient,d is communication
distance of node,l is size of send or receive
data, fs amp d / 0 ,we take 0 d d .