Application of Adaptive OFDM
Yang Le · Micromotors · 2011
Cognitive radio technology is an effective new method to improve spectral efficiency,adaptive OFDM is able to intelligently adapt to changes in the characteristics of transmission channel is very flexible to adapt to cognitive radio transmission.Through the transmission based on transmission bandwidth and power fixed channel allocation model,presented a distributed cognitive radio systems used in the channel and adaptive transmit power allocation method.Simulation results show that the proposed method is efficient for distributed adaptive channel allocation for power,performance,use fixed transmission power than the distributed channel allocation method has improved significantly.