|
n
|
Number of sensors
|
|
M
|
Length of the region of interest
|
|
ETx(l, d)
|
Transmission energy consumption for l bits and d distance
|
|
φ
|
Constant energy by electronic
|
|
α and β
|
Amount of energy per bit dissipated in the transmitter amplifier
|
|
d(i, j)
|
distance between sensor i and sensor j
|
|
ERx(l)
|
Receiving energy consumption for l bits
|
|
si
|
ith sensor
|
|
Eia
|
Average residual energy of ith sensor
|
|
Eiac
|
Average energy consumption of ith sensor
|
|
ti
|
Waiting time
|
|
T2
|
Time duration for cluster head competition activity
|
|
T1
|
Time duration for information gathering
|
|
T3
|
Time duration for redundancy and activation
|
|
T4
|
Time duration for cluster formation
|
