Simulation of Coded Orthogonal Frequency Division Multiplexing

Currently, the OFDM system operation is considered theoretically well described and generally understood. However, new advanced in information and communication theory cause that OFDM is constantly updated and improved. For a real understanding of the implications of system modifications it would be ideal to implement them in an existing working system. To save development time, but still maintain the necessary insight, simulation of system operation is a more realistic option. This paper presents some of the practices necessary to successfully implement a MatLAB based simulation of an OFDM system, along with error performance simulation results for an OFDM system with and without employment of a modern LDPC code under AWGN channel and under a more realistic heavy multipath NLOS Rayleigh channel.