Ultra-Wideband Signal Acquisition in Non-Gaussian Noise via Successive Sampling

Abstract— Ultra-wideband (UWB) communications is envisaged to be deployed in indoor environments, where the noise distribution is decidedly non-Gaussian. A critical challenge for UWB is the synchronization of nanosecond-long pulses. In this paper, we propose a signal acquisition scheme that is robust to uncertainties in the noise distribution. Following Huber’s Mestimates for the Gaussian mixture noise model, the successive sampling-based robust acquisition system outperforms Gaussianoptimal maximum likelihood approach. We present performance evaluation based on the normalized mean-square error and the bit-error rate.

• Type: Conference
• Year: 2007
• Where: VTC
• Authors: Ersen Ekrem, Mutlu Koca, Hakan Deliç
• Keywords: Gaussian Mixture Noise, Noise Distribution, Sampling-based Robust Acquisition, VTC 2007