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| Research on HPA Digital Base-band Pre-distortion Technique Based on Look-up Table Method |
| Ai Bo①②; Yang Zhi-xing①; Pan Chang-yong①; Zhang Tao-tao①; Yang Hui① |
| ①State Key Lab on Microwave & Digital Communications, Dept. of E&E, Tsinghua University, Beijing 100084, China;②Dept. of Telecommunications Engineering, Engineering College of Armed Force Police, Xi’an 710086, China |
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Abstract This paper focus on the research of LUT based digital pre-distortion techniques in OFDM systems. The defects of the conventional LUT based pre-distortion techniques are pointed out with the improved method proposed. The performance of the algorithms are compared and analyzed in terms of BER, PSD and the convergence speed. Simulation results and analysis demonstrate the better performance of the proposed method.
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Received: 05 January 2006
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2007, Vol. 29 
