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Title:
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Novel model for propagation loss prediction in tunnels.
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Author:
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Zhang, Yue Ping.
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Copyright year:
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2003 |
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Abstract:
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Radio signal propagation in a tunnel exhibits distinct
near and far regions with quite different propagation characteristics.
This paper proposes a model that can distinguish these propagation
regions and predict their respective propagation losses in
the tunnel. The model relies on a break point to separate the propagation
regions and a hybrid technique to calculate the propagation
losses. The location of the break point is determined with the
solution of a novel tunnel-propagation equation for the first time.
The solution shows that the location of the break point depends
strongly upon frequency, antenna position, and tunnel transversal
dimensions. The model is compared with data measured in various
tunnels at different frequencies (900 MHz, 1.8 GHz, and 2.448
GHz). The results show reasonable agreement between predictions
and measurements. |
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Subject:
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DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing. |
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Type:
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Journal Article |
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Series/ Journal Title:
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IEEE transactions on vehicular technology |
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School:
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School of Electrical and Electronic Engineering |
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Rights:
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© 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
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Version:
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Published version |
