Simple and Exact Closed-Form Expression for Determination of a Penetrated Ray Path in a Ray TracingReport as inadecuate

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International Journal of Antennas and PropagationVolume 2013 2013, Article ID 545874, 7 pages

Research Article

Department of Electric and Electronic Engineering, Yonsei University, Seoul 120-749, Republic of Korea

ISR RandD Laboratory LIG Nex1, 207, Mabuk-ro, Giheung-gu, Yongin-si, Gyeonggi-do 446-798, Republic of Korea

Yonsei Institute of Convergence Technology, Yonsei University, Incheon 406-840, Republic of Korea

Received 29 July 2013; Accepted 13 November 2013

Academic Editor: Felipe Cátedra

Copyright © 2013 Hyun Wook Moon et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A simple and exact closed-form equation to determine a penetrated ray path in a ray tracing is proposed for an accurate channel prediction in indoor environments. Whereas the penetrated ray path in a conventional ray tracing is treated as a straight line without refraction, the proposed method is able to consider refraction through the wall in the penetrated ray path. Hence, it improves the accuracy in ray tracing simulation. To verify the validation of the proposed method, the simulated results of conventional method, approximate method, and proposed method are compared with the measured results. The comparison shows that the proposed method is in better agreement with the measured results than the conventional method and approximate method, especially in high frequency bands.

Author: Hyun Wook Moon, Woojoong Kim, Sewoong Kwon, Jaeheung Kim, and Young Joong Yoon



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