Determination of Single Knife Edge Equivalent Parameters for Triple Knife Edge Diffraction Loss by Giovanelli Method
International Journal of Information and Communication Sciences
Volume 2, Issue 1, February 2017, Pages: 10-14
Received: Jan. 1, 2017; Accepted: Feb. 9, 2017; Published: Apr. 22, 2017
Views 1566      Downloads 57
Authors
Ezenugu Isaac A., Department of Electrical/Electronic Engineering, Imo State University, Owerri, Nigeria
Ikechukwu H. Ezeh, Department of Electrical/Electronic Engineering, Imo State University, Owerri, Nigeria
Swinton C. Nwokonko, Department of Electrical/Electronic Engineering, Imo State University, Owerri, Nigeria
Article Tools
Follow on us
Abstract
In this paper, the computation of triple knife edge diffraction loss by Giovanelli multiple knife edge diffraction loss method is presented for a 10 GHz Ku-band microwave link. Also, the computation of equivalent single knife edge obstruction that will replace the triple obstruction by giving the same diffraction loss as the dual obstructions is presented. The results shows that for the triple obstructions (M1, M2 and M3) the total diffraction loss is 59.5095778 dB as computed by the Giovanelli method. The individual diffraction loss from obstructions M1, M2 and M3 are 13.3856983 dB, 29.59291 dB and 16.5309693 dB respectively. Furthermore, a single knife edge obstruction located at the middle of the link (dt = dr = 4475m) and with LOS clearance height of 1237.591 m will be give the same diffraction loss as the three knife edge obstructions M1, M2 and M3. Essentially, the line of sight clearance height of the equivalent single knife edge obstruction are much more than the sum of the line of sight clearance height of the three original obstructions.
Keywords
Diffraction Parameter, Diffraction Loss, Knife Edge obstruction, Multiple Knife Edge Obstruction, Equivalent Single Knife Edge Obstruction, Giovanelli Method
To cite this article
Ezenugu Isaac A., Ikechukwu H. Ezeh, Swinton C. Nwokonko, Determination of Single Knife Edge Equivalent Parameters for Triple Knife Edge Diffraction Loss by Giovanelli Method, International Journal of Information and Communication Sciences. Vol. 2, No. 1, 2017, pp. 10-14. doi: 10.11648/j.ijics.20170201.12
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
[1]
Popoola, S. I., & Oseni, O. F. (2014). Empirical Path Loss Models for GSM Network Deployment in Makurdi, Nigeria. International Refereed Journal of Engineering and Science (IRJES), 3(6), 85-94.
[2]
Cheng, L., Tsai, H. M., Viriyasitavat, W., & Boban, M. (2016, October). Comparison of radio frequency and visible light propagation channel for vehicular communications. In Proceedings of the First ACM International Workshop on Smart, Autonomous, and Connected Vehicular Systems and Services (pp. 66-67). ACM.
[3]
Sun, S., MacCartney, G. R., Samimi, M. K., Nie, S., & Rappaport, T. S. (2014, June). Millimeter wave multi-beam antenna combining for 5G cellular link improvement in New York City. In 2014 IEEE International Conference on Communications (ICC) (pp. 5468-5473). IEEE.
[4]
Bai, T., Alkhateeb, A., & Heath, R. W. (2014). Coverage and capacity of millimeter-wave cellular networks. IEEE Communications Magazine, 52(9), 70-77.
[5]
Shah, N. M., & Allnutt, J. E. (2014). A short note on the variation of path loss in the atmosphere. Journal of Atmospheric and Solar-Terrestrial Physics, 110, 58-62.
[6]
Sharma, K., & Nanglia, P. (2016). Transmission and Optimization of a 3G/4G Microwave Network at 14GHz. International Journal of Engineering Science, 6086.
[7]
Aremu, O. A., Taiwo, O. A., Makinde, O. S., & Adeniji, J. A. (2016). Experimental Study of Variation of Path Loss with Respect to Heights at GSM Frequency Band.
[8]
Hrovat, A., Kandus, G., & Javornik, T. (2014). A survey of radio propagation modeling for tunnels. IEEE Communications Surveys & Tutorials, 16(2), 658-669.
[9]
Choudhary, N., & Sharma, A. K. (2010). Performance Evaluation of LR-WPAN for different Path-Loss Models. International Journal of Computer Applications (0975–8887) Volume.
[10]
McNeill, P. R. (2002). RADIO FREQUENCY PROPAGATION DIFFERENCES THROUGH VARIOUS TRANSMISSIVE MATERIALS Patrick L. Ryan, BSIE (Doctoral dissertation, UNIVERSITY OF NORTH TEXAS).
[11]
Mulligan, J. (1997). A Performance Analysis of a CSMA Multihop Packet Radio Network (Doctoral dissertation, Virginia Polytechnic Institute and State University).
[12]
Yamamoto, A., Ogawa, K., Horimatsu, T., Kato, A., & Fujise, M. (2008). Path-loss prediction models for intervehicle communication at 60 GHz. IEEE Transactions on vehicular technology, 57(1), 65-78.
[13]
He, R., Molisch, A. F., Tufvesson, F., Zhong, Z., Ai, B., & Zhang, T. (2014). Vehicle-to-vehicle propagation models with large vehicle obstructions. IEEE Transactions on Intelligent Transportation Systems, 15(5), 2237-2248.
[14]
Cowan, B., & Kapralos, B. (2015, July). Interactive rate acoustical occlusion/diffraction modeling for 2D virtual environments & games. In Information, Intelligence, Systems and Applications (IISA), 2015 6th International Conference on (pp. 1-6). IEEE.
[15]
Jude, O. O., Jimoh, A. J., & Eunice, A. B. (2016). Software for Fresnel-Kirchoff Single Knife-Edge Diffraction Loss Model. Mathematical and Software Engineering, 2(2), 76-84.
[16]
Jayaram, M. N., & Venugopal, C. R. (2014). Modeling-Simulation of an Underground Wireless Communication Channel. In Proceedings of International Conference on Internet Computing and Information Communications (pp. 81-91). Springer India
[17]
Femi-Jemilohun, O. J. (2016). Effects of Diffraction Propagation at 24GHz Spectrum Band. Transactions on Networks and Communications, 3(6), 59.
[18]
Tyson, R. K. (2014). Fresnel and Fraunhofer diffraction and wave optics. In Principles and Applications of Fourier Optics. IOP Publishing, Bristol, UK.
[19]
Pedrotti, L. S. (2008). Basic physical optics. Fundamentals of Photonics, 152-154.
[20]
Bock, R. D. (2016). On the Conventionality of Simultaneity and the Huygens-Fresnel-Miller Model of Wave Propagation. arXiv preprint arXiv:1608.01544.
[21]
Östlin, E. (2009). On Radio Wave Propagation Measurements and Modelling for Cellular Mobile Radio Networks.
[22]
Baldassaro, P. M. (2001). RF and GIS: Field Strength Prediction for Frequencies between 900 MHz and 28 GHz.
[23]
Qing, L. (2005). GIS Aided Radio Wave Propagation Modeling and Analysis (Doctoral dissertation, Virginia Polytechnic Institute and State University).
[24]
Barclay, L. W. (2003). Propagation of radiowaves (Vol. 502). Iet.
[25]
Wibling, O. (1998). Terrain Analysis with Radio Link Calculations for a Map Presentation Program. Terrain, 98, 12-08.
[26]
Giovanelli CL (1984) An analysis of simplified solutions for multiple knife-edge diffraction. IEEE Transactions on Antennas and Propagation vol AP-32, 3: 297-301
[27]
Sizun, H., & de Fornel, P. (2005). Radio wave propagation for telecommunication applications. Heidelberg: Springer.
[28]
ITU-R P. 526-13, “Propagation by diffraction,” Series of ITU-R Recommendations, Nov, 2013.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186