Channel prediction system and channel prediction method for OFDM wireless communication system

A channel prediction system for an orthogonal frequency-division multiplexing (OFDM) wireless communication system, comprising:

• a network analyzer configured to analyze a wireless signal obtained by a reception antenna;
• a channel estimation processor configured to estimate a channel of a pilot OFDM symbol in a wireless signal analysis result, and obtain channel information of the pilot OFDM symbol;
• and
• a channel prediction algorithm processor, which executes a channel prediction algorithm by a channel prediction processor, trains, with respect to each subcarrier of the pilot OFDM symbol, an adaptive elastic echo state network by using frequency domain channel information of the subcarrier obtained by channel estimation, calculates an output weight of an echo state network by using a two-layer adaptive elastic network to avoid an ill-conditioned solution of the output weight estimated by the adaptive elastic echo state network, and performs prediction by using the trained adaptive elastic echo state network to obtain predicted channel information of the pilot OFDM symbol.