TY - GEN
T1 - A new joint memory polynomial and look-up-table predistorter algorithm design
AU - Li, Zhengdai
AU - Yang, Dewei
AU - Kuang, Jingming
AU - Wang, Hua
PY - 2011
Y1 - 2011
N2 - Digital baseband predistorter technology can effectively reduce the system nonlinear distortion. The memory polynomial algorithm and the look-up table (LUT) algorithm are two commonly used predistorter algorithms. In this paper, we analyze these two algorithms, and propose a new joint memory polynomial and LUT predistorter algorithm which picks up the advantages of the two algorithms. At last the new algorithm was optimized by linear interpolation method for further quantifiable performance improvement. Simulation results show that, in the Wiener amplifier model, the application of this new algorithm can speed up the algorithm convergence, save coefficients storage RAM and reduce computational complexity.
AB - Digital baseband predistorter technology can effectively reduce the system nonlinear distortion. The memory polynomial algorithm and the look-up table (LUT) algorithm are two commonly used predistorter algorithms. In this paper, we analyze these two algorithms, and propose a new joint memory polynomial and LUT predistorter algorithm which picks up the advantages of the two algorithms. At last the new algorithm was optimized by linear interpolation method for further quantifiable performance improvement. Simulation results show that, in the Wiener amplifier model, the application of this new algorithm can speed up the algorithm convergence, save coefficients storage RAM and reduce computational complexity.
KW - Joint predistorter algorithm
KW - Look-Up Table (LUT)
KW - Memory polynomial
KW - Predistortion
UR - http://www.scopus.com/inward/record.url?scp=80054895227&partnerID=8YFLogxK
U2 - 10.1109/wicom.2011.6040188
DO - 10.1109/wicom.2011.6040188
M3 - Conference contribution
AN - SCOPUS:80054895227
SN - 9781424462520
T3 - 7th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2011
BT - 7th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2011
T2 - 7th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2011
Y2 - 23 September 2011 through 25 September 2011
ER -