A Pulse Design Method for the Compatibility of UWB and IEEE 802.11a WLAN Systems

The spectrum compatibility of UWB and IEEE 802.11a WLAN systems is investigated in this paper. A UWB pulse designed method is developed based on the cognitive radio technology and Parks-McClellan algorithm. Under the three-dimensional interference model, the interference performance of UWB on WLAN is analyzed and simulated. The simulation results show that the pulse spectrum not only satisfies the requirement of FCC mask but also avoids WLAN system. The comparison of bit error rate performance is presented by using the proposed pulses and the fifth-order derivative Gaussian pulse to the time hopping UWB system in the additive white Gaussian noise channel. And the proposed pulse has better bit error rate performance than the fifth-order derivative Gaussian pulse.