A wireless communication device configured to perform wireless communication to accelerate neural network includes: a pre-distortion circuit configured to generate a pre-distorted signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections of an entire frequency band over which the wireless communication device is configured to operate, the parameter obtaining circuit being configured to obtain the parameter set according to an indirect learning structure by using the second memory polynomial modeling information.
Wireless communication device and method of processing signal