This paper presents a comparative study on the

suitability of using Hammerstein or Wiener models to

identify the power amplifier (PA) nonlinear behavior

considering memory effects. This comparative takes into

account the operational complexity regarding the

identification process as well as their accuracy to follow the

PA behavior. Both identified PA models will be used to

estimate a Hammerstein based predistorter in order to see

which model combination provides better linearization

results. In addition, two adaptive algorithms for

predistorting both PA models are compared in terms of

accuracy and converge speed.