A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths

KH Ng; EK Tameh; AR Nix

doi:10.1109/TAP.2006.880775

A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths

KH Ng, EK Tameh, AR Nix

Research output: Contribution to journal › Article (Academic Journal) › peer-review

17 Citations (Scopus)

388 Downloads (Pure)

Abstract

Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid application in deterministic ray tracing models. A new heuristic geometrical approach is reported that finds the ray paths for arbitrary height rooftop diffraction and rooftop-to-building corner diffraction. This method can be applied to any 3-D image based ray tracing model. The accuracy of the new method is first quantified using two specific test cases. The method is then implemented in an existing microcellular ray model and path loss predictions are compared with measured data. The heuristic diffraction approach is shown to be simple to implement and lowers the prediction error when compared with the traditional Vertical Plane diffraction approximation

Translated title of the contribution	A new heuristic geometrical approach for finding non-coplanar multiple-edge diffraction ray paths
Original language	English
Article number	Issue 9
Pages (from-to)	2669 - 2672
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	54
Issue number	9
DOIs	https://doi.org/10.1109/TAP.2006.880775
Publication status	Published - Sept 2006

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Rose publication type: Journal article

Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation. 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 [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

diffraction
ray tracing
propagation

Access to Document

10.1109/TAP.2006.880775

Journal articleAccepted author manuscript, 398 KB

Handle.net

Persistent link

Cite this

@article{965eefa18ad14399afed8d5f614f5713,

title = "A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths",

abstract = "Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid application in deterministic ray tracing models. A new heuristic geometrical approach is reported that finds the ray paths for arbitrary height rooftop diffraction and rooftop-to-building corner diffraction. This method can be applied to any 3-D image based ray tracing model. The accuracy of the new method is first quantified using two specific test cases. The method is then implemented in an existing microcellular ray model and path loss predictions are compared with measured data. The heuristic diffraction approach is shown to be simple to implement and lowers the prediction error when compared with the traditional Vertical Plane diffraction approximation",

keywords = "diffraction, ray tracing, propagation",

author = "KH Ng and EK Tameh and AR Nix",

note = "Publisher: Institute of Electrical and Electronics Engineers (IEEE) Rose publication type: Journal article Terms of use: Copyright {\textcopyright} 2006 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation. 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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ",

year = "2006",

month = sep,

doi = "10.1109/TAP.2006.880775",

language = "English",

volume = "54",

pages = "2669 -- 2672",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

number = "9",

}

TY - JOUR

T1 - A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths

AU - Ng, KH

AU - Tameh, EK

AU - Nix, AR

N1 - Publisher: Institute of Electrical and Electronics Engineers (IEEE) Rose publication type: Journal article Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation. 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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

PY - 2006/9

Y1 - 2006/9

N2 - Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid application in deterministic ray tracing models. A new heuristic geometrical approach is reported that finds the ray paths for arbitrary height rooftop diffraction and rooftop-to-building corner diffraction. This method can be applied to any 3-D image based ray tracing model. The accuracy of the new method is first quantified using two specific test cases. The method is then implemented in an existing microcellular ray model and path loss predictions are compared with measured data. The heuristic diffraction approach is shown to be simple to implement and lowers the prediction error when compared with the traditional Vertical Plane diffraction approximation

AB - Rooftop diffraction can contribute significantly to the propagation path loss in outdoor microcellular environments. For non-coplanar multiple edges, the finding of exact ray paths requires a complex algebraic analysis that is infeasible for rapid application in deterministic ray tracing models. A new heuristic geometrical approach is reported that finds the ray paths for arbitrary height rooftop diffraction and rooftop-to-building corner diffraction. This method can be applied to any 3-D image based ray tracing model. The accuracy of the new method is first quantified using two specific test cases. The method is then implemented in an existing microcellular ray model and path loss predictions are compared with measured data. The heuristic diffraction approach is shown to be simple to implement and lowers the prediction error when compared with the traditional Vertical Plane diffraction approximation

KW - diffraction

KW - ray tracing

KW - propagation

U2 - 10.1109/TAP.2006.880775

DO - 10.1109/TAP.2006.880775

M3 - Article (Academic Journal)

SN - 0018-926X

VL - 54

SP - 2669

EP - 2672

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 9

M1 - Issue 9

ER -

A new heuristic geometrical approach for finding non-coplanar multiple edge diffraction ray paths

Abstract

Bibliographical note

Keywords

Access to Document

Handle.net

Fingerprint

Cite this