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Published in: Wireless Personal Communications 4/2013

01-10-2013

An Improved UTD Based Model for the Multiple Building Diffraction of Plane Waves in Urban Environments by Using Higher Order Diffraction Coefficients

Authors: Ali Tajvidy, Mohammad Ali Pourmina, Mohammad Naser-Moghadasi, Afrooz Haghbin

Published in: Wireless Personal Communications | Issue 4/2013

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Abstract

This paper describes an improved model for multiple building diffraction modeling based on the uniform theory of diffraction. A well-known problem in conventional uniform theory of diffraction (CUTD) is multiple edge transition zone diffraction. Here, higher order diffracted fields are used in order to improve the result. Hence, we use higher order diffraction coefficients to improve a hybrid physical optics (PO)-CUTD model, the results show that the new model can correct errors of the PO-CUTD model. Therefore, the proposed model can find application in the development of theoretical models to predict more realistic path loss in urban environments, when multiple building diffraction is considered.

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Footnotes
1
One explanation for long computation times when the number of edges turns out to be large is that the series in (3) will engage an enormous number of complex multiplications. The computation plan in [13] will reduce the number of complex multiplications significantly.
 
Literature
1.
go back to reference Bertoni, H. L. (2000). Radio propagation for modern wireless systems. Englewood Cliffs, NJ: Prentice-Hall. Bertoni, H. L. (2000). Radio propagation for modern wireless systems. Englewood Cliffs, NJ: Prentice-Hall.
2.
go back to reference COST 231 Digital mobile radio toward future generation systems, European Commission, Brussels, Belgium, 1999. COST 231 Digital mobile radio toward future generation systems, European Commission, Brussels, Belgium, 1999.
3.
go back to reference Zhang, W. (2000). Fast two-dimensional diffraction modeling for site-specificpropagation prediction in urban microcellular environments. IEEE Transactions on Antennas and Propagation, 49(2), 428–436. Zhang, W. (2000). Fast two-dimensional diffraction modeling for site-specificpropagation prediction in urban microcellular environments. IEEE Transactions on Antennas and Propagation, 49(2), 428–436.
4.
go back to reference Wolfish, J., & Bertoni, H. L. (1988). A theoretical model of UHF propagation in urban environments. IEEE Transactions on Antennas and Propagation, 36(12), 1788–1796.CrossRef Wolfish, J., & Bertoni, H. L. (1988). A theoretical model of UHF propagation in urban environments. IEEE Transactions on Antennas and Propagation, 36(12), 1788–1796.CrossRef
5.
go back to reference Saunders, S. R., & Bonar, F. R. (1991). Explicit multiple building diffraction attenuation function for mobile radio wave propagation. Electronics Letters, 27(14), 1276–1277.CrossRef Saunders, S. R., & Bonar, F. R. (1991). Explicit multiple building diffraction attenuation function for mobile radio wave propagation. Electronics Letters, 27(14), 1276–1277.CrossRef
6.
go back to reference Saunders, S. R., & Bonar, F. R. (1994). Prediction of mobile radio wave propagation over buildings of irregular heights and spacings. IEEE Transactions on Antennas and Propagation, 42(2), 137–144.CrossRef Saunders, S. R., & Bonar, F. R. (1994). Prediction of mobile radio wave propagation over buildings of irregular heights and spacings. IEEE Transactions on Antennas and Propagation, 42(2), 137–144.CrossRef
7.
go back to reference Neve, M. J., & Rowe, G. B. (1994). Contributions toward the development of a UTD-based model for cellular radio propagation prediction. Proceedings IEE Microwave, Antennas Propagation, 141(5), 407–414.CrossRef Neve, M. J., & Rowe, G. B. (1994). Contributions toward the development of a UTD-based model for cellular radio propagation prediction. Proceedings IEE Microwave, Antennas Propagation, 141(5), 407–414.CrossRef
8.
go back to reference Arablouei, R., & Ghorbani, A. (2002). A new UTD-based model for multiplediffractions by buildings. In Proceedings 3rd international conference microwave and milimeter wave technology, 484–488, St. Petersburg, Russia. Arablouei, R., & Ghorbani, A. (2002). A new UTD-based model for multiplediffractions by buildings. In Proceedings 3rd international conference microwave and milimeter wave technology, 484–488, St. Petersburg, Russia.
9.
go back to reference Rodríguez, J. V., Molina-García-Pardo, J.-M., & Llácer, L.-J. (2005). An improved solution expressed in terms of UTD coefficients for the multiple-building diffraction of plane waves. Vol: IEEE Antennas and Wireless Propagation Letters. 4. Rodríguez, J. V., Molina-García-Pardo, J.-M., & Llácer, L.-J. (2005). An improved solution expressed in terms of UTD coefficients for the multiple-building diffraction of plane waves. Vol: IEEE Antennas and Wireless Propagation Letters. 4.
10.
go back to reference Tajvidy, A., & Ghorbani, A. (2008). A new uniform theory-of-diffraction-based model for the multiple building diffraction of spherical waves in microcell environments. Electromagnetics, 28, 375–388.CrossRef Tajvidy, A., & Ghorbani, A. (2008). A new uniform theory-of-diffraction-based model for the multiple building diffraction of spherical waves in microcell environments. Electromagnetics, 28, 375–388.CrossRef
11.
go back to reference Torabi, E., Ghorbani, A., & Tajvidy, A. (2009). A modified diffraction coefficient for imperfect conducting wedges and buildings with finite dimensions. IEEE Transactions on Antennas and Propagation, 57(4), 1197–1207.CrossRef Torabi, E., Ghorbani, A., & Tajvidy, A. (2009). A modified diffraction coefficient for imperfect conducting wedges and buildings with finite dimensions. IEEE Transactions on Antennas and Propagation, 57(4), 1197–1207.CrossRef
12.
go back to reference Ghorbani, A., Tajvidy, A., Torabi, E., & Arablouei, R. (2011). A new uniform theory of diffraction based model for multiple building diffraction in the presence of trees. Electromagnetics, 31, 127–146.CrossRef Ghorbani, A., Tajvidy, A., Torabi, E., & Arablouei, R. (2011). A new uniform theory of diffraction based model for multiple building diffraction in the presence of trees. Electromagnetics, 31, 127–146.CrossRef
13.
go back to reference Holm, P. D. (2004). Calculation of higher order diffracted fields for multiple-edge transition zone diffraction. IEEE Transactions on Antennas and Propagation, 52(5), 1350–1355.MathSciNetCrossRef Holm, P. D. (2004). Calculation of higher order diffracted fields for multiple-edge transition zone diffraction. IEEE Transactions on Antennas and Propagation, 52(5), 1350–1355.MathSciNetCrossRef
14.
go back to reference Holm, P. D. (2000). A new heuristic UTD diffraction coefficient for no perfectly conducting wedge. IEEE Transactions on Antennas and Propagation, 48(8), 1211–1219.CrossRef Holm, P. D. (2000). A new heuristic UTD diffraction coefficient for no perfectly conducting wedge. IEEE Transactions on Antennas and Propagation, 48(8), 1211–1219.CrossRef
Metadata
Title
An Improved UTD Based Model for the Multiple Building Diffraction of Plane Waves in Urban Environments by Using Higher Order Diffraction Coefficients
Authors
Ali Tajvidy
Mohammad Ali Pourmina
Mohammad Naser-Moghadasi
Afrooz Haghbin
Publication date
01-10-2013
Publisher
Springer US
Published in
Wireless Personal Communications / Issue 4/2013
Print ISSN: 0929-6212
Electronic ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-013-1167-z

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