Row approximation calculation method of SER in high speed mobile STBC-OFDM system

In order to solve the problem of calculating the SER (Symbol error Rate) of a STBC-OFDM cooperative system which is processed by fast iterative ICI cancellation algorithm, this paper analyzes the performance of STBC-OFDM system with carrier frequency offset in frequency-selective Rayleigh fading channel and proposes a new calculation method of SIR (Signal to interference Ratio) after each iteration, based on which we get the mathematical expression of the symbol error rate for MPSK modulation. The simulation results show that the SER gotten by using this method can represent the system performance well.