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ThinkMind // ICWMC 2013, The Ninth International Conference on Wireless and Mobile Communications // View article icwmc_2013_8_30_20181


The Effect of Human Bodies on Path Loss Model in an Indoor LOS Environment

Authors:
Young-Hoon Kim
Seong-Cheol Kim

Keywords: Path loss model; Human Bodies; UWB; Indoor; LOS

Abstract:
This paper deals with the effect of the presence of people sitting in an indoor Line-of-Sight (LOS) environment on a Ultra-Wideband (UWB) channel. To assess this, we selected four scenarios with no people, 5, 10, and 20 people in the room. We created two regions in the room, one near two side walls and the other in the center aisle. In each scenario, we measured the channel at 24 receiving points from a fixed transmitting point in the room. At each receiving point, the receiver was moved around to 9 local positions to obtain a local average. In this paper, the considered UWB channel parameters are a frequency-independent pathloss model and a frequency-dependent pathloss model. We find that the pathloss exponent for the region of the center aisle decreases as more people are in the room, while the pathloss exponent for the region near the side walls increases when there are more people in the room. We also study the effect of the frequency on the pathloss characteristic. The results suggest that the effect of the presence of people on UWB channels should be considered when assessing the performance of UWB systems.

Pages: 152 to 156

Copyright: Copyright (c) IARIA, 2013

Publication date: July 21, 2013

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-284-4

Location: Nice, France

Dates: from July 21, 2013 to July 26, 2013

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