Guo, YuanbinCavallaro, Joseph R.2007-10-312007-10-312002-05-012002-05-01Y. Guo and J. R. Cavallaro, "A Novel Adaptive Pre-Distorter Using LS Estimation of SSPA Non-Linearity in Mobile OFDM Systems," vol. 3, 2002.https://hdl.handle.net/1911/19920Conference PaperSeveral LUT-based pre-distortion schemes using Saleh's model of traveling wave tube (TWT) HPA for compensation of RF non-linearity in various systems have been studied recently. In this paper we propose a novel parameter-based pre-distorter to enhance the power efficiency of mobile OFDM transmitters using solid-state power amplifiers (SSPA). Both the non-linearity and inverse of the non-linearity are estimated as memory-less polynomials using Least Squares (LS) criterion. A fully digital pre-distorter is then constructed with a closed-form inverse non-linearity to reduce the in-band non-linear distortion and out-of-band spectrum re-growth in the transmitter. Simulation results in 16-QAM OFDM show promising performance and simple implementation compared with the LUT method.engOFDMpredistortionnon-linearityPAPRConference paperOFDMpredistortionnon-linearityPAPRhttp://dx.doi.org/10.1109/ISCAS.2002.1010258