A new UWB pulse shaping for IEEE 802.15.4a

This paper presents an efficient low complexity pulse shape for multiband impulse radio ultra-wideband (IRUWB) system. The generated pulse is based on combining two triangular pulses. The first one is characterized by positive amplitude where the second have smallest negative amplitude. The simulated pulse has a cross-correlation magnitude with the main lobe of the reference pulse of 0.97 for a period of at least 0.5 ns and side lobes amplitude of 0.22. The spectrum of the pulse fit easily the relative PSD mask. The simulations results show that the amplitude of the added pulse should be less than 15% versus the peak amplitude of the main pulse. The major advantage approved by this new shape is the improvement of the spectrum occupancy versus the popular shape. In addition, it is suitable for low-complexity and low power design.