Performance of UWB Systems with Suboptimal Receivers under IEEE 802.15.4a Industrial Environments

In this paper, under the IEEE 802.15.4a line-of-sight (LOS) and non-line-of-sight (NLOS) industrial multipath environments, the performances of the selective RAKE receiver and the differential detection receiver are simulated for impulse radio ultra-wideband (UWB) systems. The simulation results reveal that in the LOS industrial environments the selective RAKE receiver has better performance. In the NLOS industrial environments, the differential detection receiver is a more viable choice with the low pulse repeat rate when the inter-symbol interference (ISI) effect can be ignored; however, the selective RAKE receiver is a better choice with the high pulse repeat rate when the ISI has to be taken into account.