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An improved LUT based predistortion method for HPA with memory effects in WCDMA systems

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3 Author(s)
Xiaoli Yang ; School of Information Science and Technology, Xiamen University, China ; Xiaofang Wu ; Jianghong Shi

In this paper, we focus on the 2D LUT (2-dimension look-up table) techniques for the mitigation of HPAs' (high power amplifiers') memory effects when transmitting WCDMA wideband signal. On the basis of the previous method, an improved two-dimensional LUT indexing method for HPA predistortion with memory is proposed. Simulation and experimental results show that the proposed method has more effective predistortion capabilities compared with the previous method.

Published in:

Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on

Date of Conference:

16-18 Oct. 2009