Bit Error Rate of a Non-ideal Impulse Radio System

The development of a UWB impulse radio front end for commercial indoor applications is a challenging task, since its components must have constant characteristics over an ultra-wide bandwidth to achieve high performance. In reality, non-ideal behavior cannot completely be cancelled out. For the estimation of the performance of such a non-ideal system by a system simulation, dedicated modeling of the components is important. This contribution shows the modeling of non-ideal components like oscillator, UWB antennas, indoor channel, and low noise amplifier, based on rigid assumptions. A system simulation of the (simplified) non-ideal impulse radio system is performed with the advanced design system (ADS) showing the achievable bit error rate. To improve the performance, optimal pulse shaping in the presence of non-ideal components is discussed.