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Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link

Received: 31 October 2016    Accepted: 12 January 2017    Published: 5 April 2017
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Abstract

In this paper mathematical model for equivalent Fresnel zone line of sight percentage clearance for terrestrial point-to-point line-of-sight communication link is presented. Sample 3 GHz microwave link with 38887.6 m path length is used to demonstrate the application of the model. In the sample link, five Fresnel zones are considered, namely zone 1, 2 4, 8, and 16. The results show that at middle of the link, the corresponding radius of each of the five Fresnel zones are r1 = 31.18 m, r2=44.1m, r4=62.36m, r8=88.19 m, r16 =124.72 m. When the LOS percentage clearance specified with respect to Fresnel zone 1 is-100% the corresponding LOS percentage clearance with respect to the other Fresnel zones are as follows: Fresnel zone 2 is -70.71%, Fresnel zone 4 is -50%, Fresnel zone 8 is -35.36% and Fresnel zone 16 is -25%. The results confirm that the equivalent line of sight percentage clearance is given as Pc(x, n2) = where n1 and n2 are two different Fresnel zones and ) are the line of sight percentage clearance at Fresnel zone n1 and n2 respectively.

Published in World Journal of Applied Physics (Volume 2, Issue 1)
DOI 10.11648/j.wjap.20170201.14
Page(s) 27-31
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Line-of-Sight Communication, Fresnel Zone, Microwave Link, Percentage Clearance, Point-to-Point Link

References
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[10] Nyete, A. M., & Afullo, T. J. O. (2013). Seasonal distribution modeling and mapping of the effective earth radius factor for microwave link design in South Africa. Progress In Electromagnetics Research B, 51, 1-32.
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[15] Arzubi, A. A., Castro Lechtaler, A., Foti, A., Fusario, R., García Garino, C., & García Guibout, J. (2010). Design of a Trans-Horizon radio link for ultra high and super high frequencies. In XVI Congreso Argentino de Ciencias de la Computación.
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  • APA Style

    Ikechukwu H. Ezeh, Nwiido Friday, Amlabu Runcie. (2017). Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link. World Journal of Applied Physics, 2(1), 27-31. https://doi.org/10.11648/j.wjap.20170201.14

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    ACS Style

    Ikechukwu H. Ezeh; Nwiido Friday; Amlabu Runcie. Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link. World J. Appl. Phys. 2017, 2(1), 27-31. doi: 10.11648/j.wjap.20170201.14

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    AMA Style

    Ikechukwu H. Ezeh, Nwiido Friday, Amlabu Runcie. Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link. World J Appl Phys. 2017;2(1):27-31. doi: 10.11648/j.wjap.20170201.14

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  • @article{10.11648/j.wjap.20170201.14,
      author = {Ikechukwu H. Ezeh and Nwiido Friday and Amlabu Runcie},
      title = {Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link},
      journal = {World Journal of Applied Physics},
      volume = {2},
      number = {1},
      pages = {27-31},
      doi = {10.11648/j.wjap.20170201.14},
      url = {https://doi.org/10.11648/j.wjap.20170201.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjap.20170201.14},
      abstract = {In this paper mathematical model for equivalent Fresnel zone line of sight percentage clearance for terrestrial point-to-point line-of-sight communication link is presented. Sample 3 GHz microwave link with 38887.6 m path length is used to demonstrate the application of the model. In the sample link, five Fresnel zones are considered, namely zone 1, 2 4, 8, and 16. The results show that at middle of the link, the corresponding radius of each of the five Fresnel zones are r1 = 31.18 m, r2=44.1m, r4=62.36m, r8=88.19 m, r16 =124.72 m. When the LOS percentage clearance specified with respect to Fresnel zone 1 is-100% the corresponding LOS percentage clearance with respect to the other Fresnel zones are as follows: Fresnel zone 2 is -70.71%, Fresnel zone 4 is -50%, Fresnel zone 8 is -35.36% and Fresnel zone 16 is -25%. The results confirm that the equivalent line of sight percentage clearance is given as Pc(x, n2) =  where n1 and n2 are two different Fresnel zones and ) are the line of sight percentage clearance at Fresnel zone n1 and n2 respectively.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Mathematical Model for Equivalent Fresnel Zone Line of Sight Percentage Clearance for Terrestrial Point-to-Point Line-of-Sight Communication Link
    AU  - Ikechukwu H. Ezeh
    AU  - Nwiido Friday
    AU  - Amlabu Runcie
    Y1  - 2017/04/05
    PY  - 2017
    N1  - https://doi.org/10.11648/j.wjap.20170201.14
    DO  - 10.11648/j.wjap.20170201.14
    T2  - World Journal of Applied Physics
    JF  - World Journal of Applied Physics
    JO  - World Journal of Applied Physics
    SP  - 27
    EP  - 31
    PB  - Science Publishing Group
    SN  - 2637-6008
    UR  - https://doi.org/10.11648/j.wjap.20170201.14
    AB  - In this paper mathematical model for equivalent Fresnel zone line of sight percentage clearance for terrestrial point-to-point line-of-sight communication link is presented. Sample 3 GHz microwave link with 38887.6 m path length is used to demonstrate the application of the model. In the sample link, five Fresnel zones are considered, namely zone 1, 2 4, 8, and 16. The results show that at middle of the link, the corresponding radius of each of the five Fresnel zones are r1 = 31.18 m, r2=44.1m, r4=62.36m, r8=88.19 m, r16 =124.72 m. When the LOS percentage clearance specified with respect to Fresnel zone 1 is-100% the corresponding LOS percentage clearance with respect to the other Fresnel zones are as follows: Fresnel zone 2 is -70.71%, Fresnel zone 4 is -50%, Fresnel zone 8 is -35.36% and Fresnel zone 16 is -25%. The results confirm that the equivalent line of sight percentage clearance is given as Pc(x, n2) =  where n1 and n2 are two different Fresnel zones and ) are the line of sight percentage clearance at Fresnel zone n1 and n2 respectively.
    VL  - 2
    IS  - 1
    ER  - 

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Author Information
  • Department of Electrical Engineering, Imo State University (IMSU), Owerri, Nigeria

  • Department of Electrical/Electronic and Computer Engineering, University of Uyo, Uyo, Nigeria

  • Department of Electrical/Electronic and Computer Engineering, University of Uyo, Uyo, Nigeria

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