How different are UWB channels from conventional wideband channels?

Authors

Ulrich G. Schuster and Helmut Bölcskei

Reference

International Workshop on Convergent Technologies (IWCT), Oulu, Finland, June 2005, (invited paper).

Abstract

We present results of two indoor ultra-wideband (UWB) channel measurement campaigns in the 2GHz-5GHz frequency band, and use these results to assess the differences and commonalities between UWB channel models and commonly used indoor wideband channel models. We find that the small-scale fading distributions of the UWB channel impulse response taps can still be adequately modeled as complex Gaussian, with a mean component that depends on the measurement setting. The taps are correlated, although the (frequency) diversity order scales linearly with bandwidth. The power-delay profile typically contains several clusters.

Keywords

Ultra-Wideband (UWB), channel modeling, Rayleigh distribution, Rice distribution, wideband fading channel, uncorrelated scattering (US)

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