Comparison of detectors for multiple-access interference mitigation in TH-IR UWB

Multiple access interference (MAI) in time-hopping impulse-radio ultra-wideband (TH IR-UWB) systems has been shown to have a non-Gaussian distribution. Hence the conventional linear matched filter receiver is no longer the optimal solution, and a number of non-linear detectors that are ldquorobustrdquo to non-Gaussian impairments have been proposed in the recent past. Most of these detectors depend on one or more parameters and are thus parametric detectors. In this paper, we compare the performance of those detectors and investigate the dependency of the performance on proper parameter adjustment.