UWB waveform design method for narrowband interference suppression based on raised cosine pulse

In this paper, a UWB pulse design method is proposed for the coexistence of UWB and IEEE 802.11a WLAN systems by using the raised cosine pulses. The simulation results show that the pulse spectrum satisfies the FCC mask and also avoids WLAN system. The comparison of bit error rate (BER) performance is presented by using the proposed pulse and the second-order derivative Gaussian pulse in the additive white Gaussian noise channel. It is shown that the proposed pulse has better BER performance than the second-order derivative Gaussian pulse and hence improves the performance of UWB systems.