Study on the multiple diffraction for UWB signals under NLOS environment in WSNs

DOI

10.2991/isrme-15.2015.273How to use a DOI?

Keywords

ultra-wideband (UWB); uniform theory of diffraction (UTD); multiple diffraction; pulse distortion

Abstract

A time domain (TD) hybrid solution based on uniform theory of diffraction-physical optics (UTD-PO) is presented to analyze the multiple diffraction under nonline-of-sight (NLOS) environment where an obstacle causes shadowing of the transmitter from the receiver in wireless sensor networks (WSNs). The channel impulse response of the model is derived, which utilizes a recursion relation and does not need to incorporate the slope diffraction in the transition zone. The received signals can be predicted through a simple operation of convolution, which provides a faster and easier final solution for UWB radio propagation and significantly reduces the computational time. The TD result can be applied to analyze the UWB pulse distortion by multiple diffraction under NLOS environment in WSNs.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Tao Han
AU  - Zhaoxuan Kuang
AU  - Hongcheng Wang
AU  - Xiuping Li
PY  - 2015/04
DA  - 2015/04
TI  - Study on the multiple diffraction for UWB signals under NLOS environment in WSNs
BT  - Proceedings of the 2015 International Conference on Intelligent Systems Research and Mechatronics Engineering
PB  - Atlantis Press
SP  - 1369
EP  - 1373
SN  - 1951-6851
UR  - https://doi.org/10.2991/isrme-15.2015.273
DO  - 10.2991/isrme-15.2015.273
ID  - Han2015/04
ER  -