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The effects of modulation and urban shielding on microcellular system capacity

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationUnknown
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Pages467 - 471
ISBN (Print)078031575, 0780331575
StatePublished - May 1996
Event46th Vehicular Technology Conference 1996. 'Mobile Technology for the Human Race' - Atlanta, GA, United States


Conference46th Vehicular Technology Conference 1996. 'Mobile Technology for the Human Race'
CountryUnited States
CityAtlanta, GA
Period1/04/96 → …


This paper evaluates the effects of modulation and urban shielding for modern microcellular systems. The capacity analysis makes use of the site specific ray-tracing propagation models previously developed at the University of Bristol. For a given microcellular location a site specific building database has been used to predict the signal coverage as a result of reflection, diffraction and scattering in the focal environment. Taking into account a number of system parameters, such as modulation type, antenna pattern, SNR, C/I, and outage probability, the ray-traced propagation data has been extensively analysed to provide an accurate estimation of system capacity. Using this model the impact of higher level modulation schemes such as 16-QAM are examined for microcellular networks.

Additional information

Conference Proceedings/Title of Journal: IEEE VTC Rose publication type: Conference contribution Sponsorship: Timothy Yan wishes to thank De Montfort University (UK) for their financial support. The authors would also like to acknowledge Georgia Athanasiadou for her helpful discussions regarding ray tracing and microcellular modelling. Finally, the authors are grateful for the use of the University of Bristol’s XRay propagation software. Terms of use: Copyright © 1996 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 1996. 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

  • UHF radio propagation, ray tracing


46th Vehicular Technology Conference 1996. 'Mobile Technology for the Human Race'

Duration1 Apr 1996 → …
CityAtlanta, GA
CountryUnited States

Event: Conference

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