Orthogonal frequency-division multiplexing~(OFDM) simulation project. It's a project of Digital Signal Processing course, Peking University.
This is the system model of OFDM. We use Cyclic Prefix, up/down-sampling and filter to simulate Multipath-fading Gaussian channel.
It has two versions, using BPSK and QPSK modulation, respectively. The FIR filter is designed for anti-aliasing when up/down sampling.