TY - GEN
T1 - A ray tracing technique to predict path loss and delay spread inside buildings
AU - Seidel, Scott Y.
AU - Rappaport, Theodore S.
N1 - Funding Information:
This work was supported by a National Science Founda- tion Graduate Research Fellowship and the Industrial Affiliates Program of Viginia Tech’s Mobile and Portable Radio Research Group. Thank you to Kurt Schaubach for many stim- ulating discussions concerning ray tracing for propagation prediction.
Publisher Copyright:
© 1992 IEEE.
PY - 1992
Y1 - 1992
N2 - This paper presents a ray tracing technique to predict path loss and delay spread in buildings. A computer program to predict radio propagation in buildings based on site-specific information such as wall locations and building materials is described. Using geometrical optics-based assumptions, rays are traced in three dimensions from a transmitter location. Line-of-sight, specularly transmitted, specularly reflected, and non-specularly transmitted and reflected rays are included in the model. The individual rays are combined coherently as a function of excess delay to form a power delay profile. Power delay profiles are used for qualitative comparison of measured and predicted propagation. Statistics such as path loss and rms delay spread are computed from the power delay profiles to provide quantitative comparisons. For the office environment studied, reasonable agreement between measured and predicted power delay profiles is found, path loss is predicted to within 6 dB, and rms delay spread is predicted to wimin 20 ns.
AB - This paper presents a ray tracing technique to predict path loss and delay spread in buildings. A computer program to predict radio propagation in buildings based on site-specific information such as wall locations and building materials is described. Using geometrical optics-based assumptions, rays are traced in three dimensions from a transmitter location. Line-of-sight, specularly transmitted, specularly reflected, and non-specularly transmitted and reflected rays are included in the model. The individual rays are combined coherently as a function of excess delay to form a power delay profile. Power delay profiles are used for qualitative comparison of measured and predicted propagation. Statistics such as path loss and rms delay spread are computed from the power delay profiles to provide quantitative comparisons. For the office environment studied, reasonable agreement between measured and predicted power delay profiles is found, path loss is predicted to within 6 dB, and rms delay spread is predicted to wimin 20 ns.
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U2 - 10.1109/GLOCOM.1992.276436
DO - 10.1109/GLOCOM.1992.276436
M3 - Conference contribution
AN - SCOPUS:85027140317
T3 - GLOBECOM 1992 - Communication for Global Users: IEEE Global Telecommunications Conference
SP - 649
EP - 653
BT - GLOBECOM 1992 - Communication for Global Users
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 IEEE Global Telecommunications Conference: Communication for Global Users, GLOBECOM 1992
Y2 - 6 December 1992 through 9 December 1992
ER -