UWB propagation channel measurements for WPAN scenarios

In this paper, we perform UWB propagation channel measurements for scenarios when transmit antenna is located on a human body. Measurements were done for different antenna locations: on a head, on a torso, on a belt. For reference purposes we measured signal propagation when the transmit antenna was in free space. We investigated influence of a human body at the link budget for a different frequencies and antenna polarizations. The minimal blockage was found for the antenna located on a head. For a vertically polarized antenna located on a torso or on a belt the signal blockage in backwards and sideward directions is smaller then for horizontally polarized antenna.

[1]  Moe Z. Win,et al.  The ultra-wide bandwidth indoor channel: from statistical model to simulations , 2002, IEEE J. Sel. Areas Commun..

[2]  Jesper Ødum Nielsen,et al.  In-network evaluation of body-carried mobile terminal performance , 2001, 12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598).

[3]  Gert Frølund Pedersen,et al.  Statistics of measured body loss for mobile phones , 2001 .

[4]  Moe Z. Win,et al.  Impulse radio: how it works , 1998, IEEE Communications Letters.

[5]  G. Tröster,et al.  Small Patch Antennas for UWB Wireless Body Area Network , 2007 .

[6]  W.A.Th. Kotterman,et al.  Cable-less measurement set-up for wireless handheld terminals , 2001, 12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598).

[7]  A.G. Yarovoy,et al.  Antenna development for UWB impulse radio , 2004, 34th European Microwave Conference, 2004..

[8]  J. Foerster,et al.  Channel modeling sub-committee report final , 2002 .

[9]  J.L. Garcia,et al.  New channel impulse response model for UWB indoor system simulations , 2003, The 57th IEEE Semiannual Vehicular Technology Conference, 2003. VTC 2003-Spring..

[10]  P.S. Hall,et al.  Comparison between two different antennas for UWB on-body propagation measurements , 2005, IEEE Antennas and Wireless Propagation Letters.

[11]  Thad B. Welch,et al.  The effects of the human body on UWB signal propagation in an indoor environment , 2002, IEEE J. Sel. Areas Commun..