A New Adaptive Predistorter Based on Estimator and LUT

摘要：

The adaptive predistortion is an effective technique to correct the error caused by the nonlinearity of high-power amplifier (HPA). This paper proposes a novel method to construct the adaptive predistorter which combines the estimator and look-up table (LUT) together. The property of the adaptive predistorters depends on the update frequency and algorithm. By setting bit error rate (BER) as an update indicator, update frequency of the new predistorter become significantly low. The update scheme begins when the BER is lower than the standard BER. In the new method, different predistortion algorithms can be chosen according to different input back-off (IBO). Therefore, the calculation amount can be reduced.

作者: Zhang Song Wen Hong Zhang Gaoyuan Ren Xiangwei

作者单位: National Key Laboratory of Science and Technology on Communications, Univ. of Electron. Sci. & Tech. Of China, Chengdu, 610054

会议类型: 国际会议

会议名称: 2010 International Conference on Communications,Circuits and Systems(2010年通信、电路与系统国际会议)

会议地点: 成都

会议语种:英文

页码: 115-118

在线出版日期: 2010-06-28（万方平台首次上网日期，不代表论文的发表时间）