A Novel Predistorter Structure for Memory Nonlinear Distortion in Wideband OFDM Systems

摘要：

To solve the problem of memory nonlinear distortion in wideband OFDM system, a novel Frequency Domain Predistorter (FDPD) structure is proposed. The Predistorter which based on 2-dimension look-up table method is used in frequency domain. It can compensate the memory nonlinear distortion accurately, but the system performance is restricted by the size of lookup table. Then the Filter Look-Up Table (FLUT) with FDPD, which combined the FDPD with FLLT, is proposed to improve the BER performance and convergence speed. The simulation results indicate that the novel structure can decrease the BER in the receiver and increase the convergence speed.

关键词： OFDM frequency domain predistort FLUT

作者: Ren Zhi-yuan Zhang Hai-lin

作者单位: State key lab of integrated services network, xidian university, xian, shannxi, 710071

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 444-447

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）