HPA Pre-Distortion Based on An Improved LUT Technique

Conference: European Wireless 2006 - 12th European Wireless Conference 2006 - Enabling Technologies for Wireless Multimedia Communications
04/02/2006 - 04/05/2006 at Athens, Greece

Proceedings: European Wireless 2006

Pages: 6Language: englishTyp: PDF

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Bo, Ai; Zhi-xing, Yang; Chang-yong, Pan; Tao-tao, Zhang; Hui, Yang (Tsinghua University, Dept. of Electrical Engineering, State Key Lab. on Microwave and Digital Communications, Beijing, China (100084))
Bo, Ai (College of Armed Police Force, Dept. of Telecommunications Engineering, Xi’an, China (710086))
Yong, Wang (?Xidian University, Dept. of Telecommunications Engineering, Xi’an China (710071))

In this paper, we focus on the Look-up Table (LUT) technique for compensation of HPA nonlinear distortion. An improved LUT method is proposed with better performance compared with the conventional LUT technique in terms of convergence speeds, BER and total degradation (TD). It can get over 8dB gain in out-of-band spectrum re-growth suppression and about 0.3dB BER performance gain than the conventional LUT technique under the same simulation conditions. Also, we propose an actual application of HPA with pre-distorter in OFDM transmitte.