Table 1 Simulation setting
System parameter | |
|---|---|
 Number of Macro AEs | 9 |
 Number of Small Cell AEs | 72 (each Macro AE has two clusters with four Small AEs) |
 Number of subchannels | 20 |
 Maximum power of Macro AE | 46 dBm |
 Maximum power of Small Cell AE | 30 dBm |
 Carrier frequency | 2 GHz |
 Bandwidth | 10 MHz |
 Pathloss model | PL = 128.1 + 37.6 log10 d, d(km) |
 Shadowing standard deviation | 8 dB |
 Shadowing correlation distance | 50 m |
 Fast fading | Rayleigh fading |
 Noise density | −174 dBm/Hz |
 Maximal size of the serving set N a | 3 |
 Maximal size of the subchannel set N s | 3 |
GA parameters | |
 Population size N p | 500 |
 Number of generations N g | 200 |
 Mutation rate p m | 0.001 |