NDLI: Efficient ray-tracing methods for propagation prediction for indoor wireless communications

Content Provider	IEEE Xplore Digital Library
Author	Zhong Ji Bin-Hong Li Hao-Xing Wang Hsing-Yi Chen Sarkar, T.K.
Copyright Year	1990
Abstract	The application of several ray-tracing techniques, in combination with the uniform theory of diffraction, is presented for efficient prediction of propagation in the UHF (communication) band in an indoor environment. First, we improve the computational efficiency of the two-dimensional (2D) ray-tracing method by reorganizing the objects in an indoor environment into irregular cells. Second, by making use of the two-dimensional ray-tracing results, a new three-dimensional (3D) propagation-prediction model is developed, which can save 99% of the computation time of a traditional three-dimensional model. This new hybrid model is more accurate than two-dimensional models, and more efficient in computing the path loss to any point in the building than traditional three-dimensional models. In this model, reflection and refraction by layered materials, and diffraction for the corners of the walls, are considered. A patched-wall model is used to improve the accuracy of prediction in the method. Finally, a comparison between simulation and measurements shows good agreement.
Starting Page	41
Ending Page	49
Page Count	9
File Size	914382
File Format	PDF
ISSN	10459243
Volume Number	43
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ray tracing Wireless communication Indoor environments Predictive models Radio propagation Reflection Receivers UHF propagation Physical theory of diffraction Indoor radio communication
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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