New non-iterative look-up table predistortion method

A new non-iterative look-up table predistortion method is presented, it uses the improved look-up table predistorter, and according to the in-phase and quadrature (IQ) input signals and values of the look-up tables, the predistortion IQ output can be obtained directly after multiplication and addition operations, which can avoid additional computation caused by coordinate transformation, making the predistortion structure simpler and less computation. The combination of single-feedback technique reduces the hardware costs. Simulation results show the correctness of the proposed method, which can suppress in-band and out-of-band distortion, and achieve satisfactory linearization performance.