The Ultra-Wide Bandwidth Indoor Channel - From Statistical Model to Simulations

Summary, in English

We establish a statistical model for the ultra-wide bandwidth (UWB) indoor channel based on an extensive measurement campaign in a typical modern office building with 2-ns delay resolution. The approach is based on the investigation of the statistical properties of the multipath profiles measured in different rooms over a finely spaced measurement grid. The analysis leads to the formulation of a stochastic tapped-delay-line (STDL) model of the UWB indoor channel. The averaged power delay profile can be well-modeled by a single exponential decay with a statistically distributed decay constant. The small-scale statistics of path energy gains follow Gamma distributions whose parameters m are truncated Gaussian variables with mean values and standard deviations decreasing with delay. The total received energy experiences a lognormal shadowing around the mean energy given by the path-loss power law. We also find that the correlation between multipath components is negligible. Finally, we propose an implementation of the STDL model and give a comparison between the experimental data and the simulation results.

• Författare: D Cassioli; M Z Win; Andreas Molisch
• Avdelning/ar: Institutionen för elektro- och informationsteknik
• Publiceringsår: 2002
• Språk: Engelska
• Sidor: 1247-1257
• Publikation/Tidskrift/Serie: IEEE Journal on Selected Areas in Communications
• Volym: 20
• Issue: 6
• Länkar: http://dx.doi.org/10.1109/JSAC.2002.801228
• Dokumenttyp: Artikel i tidskrift
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1558-0008