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A 3-D integrated macro and microcellular propagation model, based on the use of photogrammetric terrain and building data

Research output: Contribution to conferenceAbstract

Original languageEnglish
Publication dateMay 1997
Pages1957 - 1961
DOIs
StatePublished

Abstract

This paper describes a fully three-dimensional deterministic propagation model based on a radar cross-section analysis of terrain pixels and building walls. The model utilises a variable resolution terrain database as well as a buildings database to predict signal strength, time dispersion and fading information, in addition to providing spatial information (e.g. arrival angles) for the propagation channel. It considers scattering from illuminated terrain pixels and building walls as well as considering off-axis terrain and rooftop diffraction contributions. The model can be particularly useful for integrating macrocells and microcells e.g. predicting interference in a microcell due to a nearby macrocell or vice versa. Signal strength predictions from the model show good agreement with narrowband measurements for a rural macrocell. The effects of buildings and foliage in the propagation channel are investigated, and reveal that large errors can result if these effects are ignored. The accuracy improvement of the 3-D analysis over the simpler 2-D approach is also demonstrated.

Additional information

Sponsorship: Much of the work described in this paper was carried out under the Virtual University Research Initiative (VURI)and funded by British Telecommunication Research Laboratories at Martlesham, UK Terms of use: Copyright © 1997 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 1997. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or 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 must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Name of Conference: 47th Vehicular Technology Conference 1997 (VTC 1997-Spring) Venue of Conference: Phenix, AZ

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Research areas

  • land mobile radio, radiowave propagation, electromagnetic wave diffraction, cellular radio

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