Research Article

Energy Cost Minimization in Heterogeneous Cellular Networks with Hybrid Energy Supplies

Table 1

Network parameters and values.

Parameter Value

Macro cell radius 600 m
Available bandwidth in each cell 20 MHz
Maximum transmit power
 Macro BS 46 dBm
 Pico BS 30 dBm
Static power
 Macro BS130.0 W
 Pico BS13.6 W
Power in sleep
 Macro BS75.0 W
 Pico BS4.3 W
Slope of dynamic power
 Macro BS4.7
 Pico BS4.0
Path loss ( in Km)
 Macro cell to users128.1 +
 Pico cell to users130.7 +
Thermal noise power level −174 dBm/Hz
Data rate requirement of each user 10 Mbps
Time interval 600 s