Simulation of channel estimation and equalization for WiMAX PHY layer in simulink

channel estimation and equalization schemes for broadband wireless network are an active area for recent research. WiMAX (Worldwide Interoperability for Microwave Access) is a new release standard for this technology which still facing real challenge for low complexity and efficient implementation. WiMAX supports non-line-ofsight environment with high data rate transmission and high mobility up to 125 Km/hr. WiMAX adopted OFDM/OFDMA in physical (PHY) layer for fixed/mobile applications respectively. This paper presents models for simulating a WiMAX PHY layer in Simulink and subsystems in MATLAB files. Performance of system implementation in different channel conditions is tested. Different approaches for channel estimation and equalization are modeled and evaluated. BER versus SNR curves are used for comparing the results.