自适应OFDM及其改进算法

OFDM technology is one of the core technologies of the fourth generation mobile communication, which is an efficient data transmission and is a special multi-carrier transmission scheme. The improved adaptive modulation technology adjusts the step of computing according to limited bits of constellation atlas, which reduce the computation greatly. Compared the result of the improved adaptive modulation technology with the result of Compello algorithm simulation, we find that the improved adaptive modulation OFDM technology has great advantages.