Analysis of Receiver Feedback Closed Loop Pre-distortion to Compensate for Nonlinear HPA and Foliage Attenuation
In next generation satellites will use high efficiency modulation such as 16-APSK. In satellite communication, 16-APSK scheme has better receiver performance than 16-QAM and 16-PSK due to its intrinsic robustness against the High Power Amplifier (HPA) nonlinear characteristics. In this paper, we propose a receiver feedback closed loop pre-distortion technique to compensate for the HPA nonlinearity and foliage attenuation on 16-APSK. Simulation results show that the proposed scheme can achieve about 8dB of the BER performance enhancement compared with that of without pre-distortion technique at BER=10− 3.
KeywordsPre-distortion foliage attenuation Rational-model closed loop predistortion nonlinear HPA
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- 3.Lee, K., Gardner, P.: Comparison of different adaptation algorithms for adaptive digital predistortion based on EDGE standard. In: Proc., IEEE MTT-S Int. Microwave Symp. Dig., vol. 2, pp. 1353–1356 (May 2001)Google Scholar
- 4.Rec. ITU-R P.833-3 Recommendation ITU-R P.833-3 Attenuation in vegetationGoogle Scholar