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The application of a deterministic ray launching algorithm for the prediction of radio channel characteristics in small-cell environments

Research output: Contribution to journalArticle

  • MC Lawton
  • JP McGeehan
Original languageEnglish
Pages (from-to)955 - 968
Number of pages14
JournalIEEE Transactions on Vehicular Technology
Journal issue4
StatePublished - Nov 1994


Propagation characteristics play a fundamental role in the design and implementation of radio systems. The application of broadband digital data services within the cordless environment requires close consideration of the dispersive nature of radio channels. A prediction algorithm is presented such that propagation characteristics can be estimated for small-cell high-data-rate systems. Through the use of geometric optics and geometric theory of diffraction the algorithm performs ray launching techniques in order to evaluate reflected, transmitted, and diffracted rays from a simplified description of a given environment. Both modeled and measured results are presented demonstrating the model's ability to predict typical rms delay spread values.

Additional information

Publisher: Institute of Electrical and Electronics Engineers, Inc. (IEEE) Rose publication type: Journal article Sponsorship: The authors would like to thank SERC and BT laboratories for the award of an SERC CASE research studentship. Terms of use: Copyright © 1994 IEEE. Reprinted from IEEE Transactions on Vehicular Technology. 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 By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

    Research areas

  • cellular radio, radiowave propagation

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