An adaptive non-linear distortion noise control method for spectrum sharing systems

This paper proposes an adaptive non-linear distortion noise control method for low-priority systems under spectrum sharing environments. The proposed method adaptively controls distortion noise power of a transmitter to improve reception quality of shared bands with transmission power control. The distortion power is reduced to meet a required transmission quality. In this paper, the spectrum property and BER performance with the method are evaluated by computer simulations. The results confirm that the proposed method can effectively reduce the distortion power and adaptively control transmission SNRs according to the required transmission quality.