A Novel segmental linearization Power Amplifier in high peak-to-average-power ratio system

In high PAPR system, Power Amplifier(PA) causes nonlinear and saturate distortions to signal seriously, which decrease the BER performance in the receiver. To solve this problem, a novel segmental linearization PA is proposed, which uses two combined PAs parallelly to extend he saturate point of PA in order to eliminate the saturate distortion. Furthermore, a signal decomposer is adopted to eliminate nonlinear distortion by using update algorithm. The simulation results indicate that the novel structure can remarkably increase the BER performance in the receiver.