Analyses and Modeling of Ultra-Wideband On-Body Propagation Channels Depending on Population Density within an Elevator Cabin

作者：Hirose Miyuki^*; Kobayashi Takehiko

来源：IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2014, E97A(1): 94-100.

DOI：10.1587/transfun.E97.A.94

• ultra-wideband
• wireless body area networks
• indoor channel measurement
• body-shadowing

This paper presents an experimental study of on-body ultra-wideband (UWB) radio propagation channels within an enclosed space. To facilitate high-speed wireless body area networks, UWB is a promising technology because of its low power consumption and anti-multipath capabilities. The motivation of this study is to examine the effects of nearby humans on the UWB channels by varying the population within an elevator cabin from one (subject alone) to 20 (full capacity of the elevator). The first domain (0 < delay, t <= 4 ns) in the measured delay profiles was either a direct (for line-of-sight) or diffracted (for non-line-of-sight) wave, which was found almost unrelated to the population; whereas the second domain (t > 4 ns) highly depended on it. Total received power and delay spreads decreased with increasing the population. In addition, by varying human population, average power delay profiles were modeled based on measurements.

• 出版日期2014-1