The key point of the K-exponential filter is that the frequency responses of the filter can vary with different specified parameter k without inter symbol interference (ISI) while keeping the same bandwidth. When the rolling factor α of the bandwidth is fixed, different value k will increase the depth attenuation. In this paper, we evaluate the receiver performance through simulation study in terms of bit error rates (BER) by using the K-exponential filters in orthogonal frequency division multiplexing (OFDM) systems over various channels. The simulation results showed that the K-exponential filters obtain better performance than that of the Raised Cosine (RC) filter. For the same BERs criterion, the SNR requirement of the K-exponential filter is 1∼ 2dB lower than that of the RC filter.