Bit Error Rate Calculation for OFDM with Synchronization Errors in Time and Frequency Selective Fading Channels
نویسندگان
چکیده
In this paper we present an analytical approach to evaluate the bit error rate (BER) of OFDM systems subject to carrier frequency offset (CFO) and channel estimation error in Rayleigh flat fading as well as in time and frequency selective fading channels. Based on correct modeling of the correlation between channel estimates and received signals with carrier frequency offset, the bit error rate can be numerically evaluated by averaging bit error rates on different subcarriers using an analytical expression of double integrals. The results illustrate that the analysis can approximate the simulative performance very accurately if the power delay profile of fading channels and carrier frequency offset are known.
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