Characterization of Body Shadowing Effects on Ultra-Wideband Propagation Channel

  • Pradubphon, Apichit (Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Promwong, Sathaporn (Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Graduate School of Science and Engineering, Tokyo Institute of Technology) ;
  • Chamchoy, Monchai (Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Supanakoon, Pichaya (Department of Information Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Takada, Jun-Ichi (Graduate School of Science and Engineering, Tokyo Institute of Technology)
  • Published : 2004.08.25

Abstract

There are several factors that disturb an Ultra-Wideband (UWB) radio propagation in an indoor environment such as path loss, shadowing and multipath fading. These factors directly affect the quality of the received signal. In this paper, we investigated the influence of the human body shadowing on UWB propagation based on measured wireless channel in an anechoic chamber. The characteristics of the UWB channel including the transmitter and the receiver antenna effects are acquired over the frequency bandwidth of 3${\sim}$11 GHz. The major factors such as the power delay profile (PDP), the angular power distribution (APD), the pulse distortion and the RMS delay spread caused by the human body shadowing are presented.

Keywords