DocumentCode
2621119
Title
An improved LUT based predistortion method for HPA with memory effects in WCDMA systems
Author
Yang, Xiaoli ; Wu, Xiaofang ; Shi, JiangHong
Author_Institution
Sch. of Inf. Sci. & Technol., Xiamen Univ., Xiamen, China
fYear
2009
fDate
16-18 Oct. 2009
Firstpage
545
Lastpage
549
Abstract
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.
Keywords
code division multiple access; distortion; power amplifiers; table lookup; 2D look-up table; WCDMA systems; high power amplifiers; memory effects; predistortion method; Finite impulse response filter; High power amplifiers; Indexing; Information science; Large-scale systems; Multiaccess communication; Nonlinear filters; Polynomials; Predistortion; Table lookup; LUT; WCDMA; memory effects; predistortion;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on
Conference_Location
Beijing
Print_ISBN
978-1-4244-4816-6
Electronic_ISBN
978-1-4244-4817-3
Type
conf
DOI
10.1109/ICCOMTA.2009.5349143
Filename
5349143
Link To Document