A general baseband volterra model for dual-band predistortion
Cheng Zhao, Saijie Yao, Wuxiong Zhang, Hua Qian
Abstract
Dual-band and multi-band power amplifiers (PAs) becomes popular as they can effectively reduce the equipment cost and operation cost. On the other hand, the nonlinear interference among signals in different bands needs special attention. Previous modeling results [1] suffer performance degradation when the intermodulation terms among bands fall into bands of the signals. In this paper, we start from the passband Volterra model and derive a general baseband Volterra model considering all possible intermodulation terms. Existing model in [1] is a special case of the proposed baseband Volterra model. Simulation results show that the proposed dual-band Volterra DPD model can provide additional 2 dB performance improvement comparing to the existing dual-band Volterra DPD model.
BibTeX
@inproceedings{icassp2016_ageneralbaseband,
title = {A general baseband volterra model for dual-band predistortion},
author = {Cheng Zhao and Saijie Yao and Wuxiong Zhang and Hua Qian},
booktitle = {ICASSP 2016},
year = {2016}
}