PIER C
 
Progress In Electromagnetics Research C
ISSN: 1937-8718
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 12 > pp. 125-137

NEW HEURISTIC DIFFRACTION COEFFICIENT FOR MODELING OF WIRELESS CHANNEL

By S. K. Soni and A. Bhattacharya

Full Article PDF (307 KB)

Abstract:
A new reciprocal heuristic diffraction coefficient for lossy dielectric wedge is presented which is applicable to arbitrary positions of transmitter and receiver in a complex channel environment. The prediction obtained using proposed coefficient is compared with those obtained using rigorous Maliuzhinets'solution. The comparison shows significant improvement over available heuristic coefficients. The coefficient is valid for both parallel and perpendicular polarizations. Further, the measurement of the electric field in the vicinity of edge of the building is carried out, and the measurement result, thus obtained, is compared with predictions using the proposed coefficient.

Citation:
S. K. Soni and A. Bhattacharya, "New Heuristic Diffraction Coefficient for Modeling of Wireless Channel," Progress In Electromagnetics Research C, Vol. 12, 125-137, 2010.
doi:10.2528/PIERC10010301

References:
1. COST Action 273, Mobile broadband multimedia networks techniques, models and tools for 4G, ISBN 0-12-369422-1, 2006.

2. Keller, J. B., "Geometrical theory of diffraction," J. Opt. Soc. Amer., Vol. 52, No. 2, 116-130, Feb. 1962.
doi:10.1364/JOSA.52.000116

3. Kouyoumjian, R. G. and P. H. Pathak, "A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface," Proc. IEEE, Vol. 62, No. 11, 1448-1461, Nov. 1974.
doi:10.1109/PROC.1974.9651

4. Luebbers, R. J., "Finite conductivity uniform GTD versus knife edge diffraction in prediction of propagation path loss," IEEE Trans. Antennas Propagat., Vol. 32, No. 1, 70-76, Jan. 1984.
doi:10.1109/TAP.1984.1143189

5. Holm, P., "A new heuristic UTD diffraction coefficient for non-perfectly conducting wedges ," IEEE Trans. Antennas Propagat., Vol. 48, No. 8, 1211-1219, Aug. 2000.
doi:10.1109/8.884489

6. Maliuzhinets, G. D., "Excitation, reflection and emission of surface waves from a wedge with given face impedances," Sov. Phys. Doklady, Vol. 3, 752-755, 1958.

7. El-Sallabi, H. M. and P. Vainikainen, "Improvements to diffraction coefficient for non-perfectly conducting wedges," IEEE Trans. Antennas Propagat., Vol. 53, No. 9, 3105-3109, Sep. 2005.
doi:10.1109/TAP.2005.854534

8. Schettino, D. N., F. J. S. Moreira, K. L. Borges, and C. G. Rego, "Novel heuristic UTD coefficients for the characterization of radio channels," IEEE Transactions on Magnetics, Vol. 43, No. 4, 1301-1304, Apr. 2007.
doi:10.1109/TMAG.2006.890975

9. Aidi, M. and J. Lavergnat, "Comparison of Luebbers' and Maliuzhinets' wedge diffraction coefficients in urban channel modelling," Progress In Electromagnetics Research, Vol. 33, 1-28, 2001.
doi:10.2528/PIER00112005

10. Remley, K. A., H. R. Anderson, and A. Weisshar, "Improving the accuracy of ray-tracing techniques for indoor propagation modeling," IEEE Trans. on Vehicular Technology, Vol. 49, No. 6, 2350-2358, Nov. 2000.
doi:10.1109/25.901903

11. Landdron, O., M. J. Feuerstein, and T. S. Rappaport, "A comparison of theoretical and empirical reflection coefficients for typical exterior wall surfaces in mobile radio environment," IEEE Trans. Antennas Propagat., Vol. 44, No. 3, 341-351, Mar. 1996.
doi:10.1109/8.486303

12. Tiberio, R., G. Pelosi, and G. Manara, "A uniform GTD formulation for the diffraction by a wedge with impedance faces," IEEE Trans. Antennas Propagat., Vol. 33, No. 8, 867-873, Aug. 1985.
doi:10.1109/TAP.1985.1143687

13. Tiberio, R., G. Pelosi, and G. Manara, P. H. Pathak, "High-frequency scattering from a wedge with impedance faces illuminated by a line source --- Part I: Diffraction ," IEEE Trans. Antennas Propagat., Vol. 37, 212-218, Feb. 1989.
doi:10.1109/8.18708

14. Hu, J.-L., S.-M. Lin, and W.-B. Wang, "Calculation of Maliuzhinets function in complex region," IEEE Trans. Antennas Propagat., Vol. 44, No. 8, 1195-1196, Aug. 1996.
doi:10.1109/8.511830


© Copyright 2010 EMW Publishing. All Rights Reserved