Resource allocation of multiuser OFDM based on hybrid GA
Chen Huang · Application of Electronic Technique · 2010
OFDM is a proper modulation technic for transmission link of cognitive radio.To allocate resource of multiuser OFDM(MU-OFDM) efficiently when the channel state information(CSI) is unavailable,a hybrid GA is proposed.The algorithm can maximate rate,allocate subchannels and power adaptively under certain BER and total transmit power.Simulation results show that the proposed method can achieve higher search precision,increase capacity and band utilization.