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Optimal Pulse Waveform Design for TH-PPM Ultra Wideband Systems

Ultra wideband (UWB) information is transmitted by a very short pulse which covers an extremely wide spectrum bandwidth. To avoid interference, pulse waveform design plays an important role in the UWB wireless systems. In this paper, an optimal pulse design method is proposed by using wavelet function in order to achieve optimal spectrum utilization, spectral mask compatibility, and coexistence with other wireless services. The UWB pulse waveform can be flexibly adjusted by this method to meet the different spectral masks, such as FCC mask and ETSI mask. The simulation results show that our design techniques provide pulse waveform with higher performance of time hopping pulse position modulation (TH-PPM) UWB system.