So this paper will research on the channel estimation and equalization for WiMAX, and to do simulation for the physical layer of WiMAX.First, according to the principles of OFDM and DFT, this paper sets up the OFDM system simulation model based on the FFT . The signal transmitter and receiver are realized in this model. Second, this paper does the research and simulation on channel estimation algorithm, such as LS, MMSE, Interpolation and so on. MMSE algorithm is superior to LS algorithm from the Simulation results. But MMSE has more complexity than LS .Third, this paper researches on the equalization algorithm such as ZF equalization, MMSE equalization and does simulation of these. Finally this paper set up the WiMAX system simulation model which is based on the IEEE802.16e. The channel estimation and equalization algorithm are realized in this simulation.
