Radio Propagation Models for Mobile DTT Networks in the UHF Band
DOI:
https://doi.org/10.18046/syt.v9i18.1077Keywords:
Propagation models, network planning, mobile TVAbstract
This article studies the suitability of different radio propagation models for the deployment of mobile TV networks over the UHF band. Accurate signal propagation modelling is key for mobile DTT network planning in order to minimize deployment costs. This article analyzes four propagation models: Okumura-Hata, Xia-Bertoni, a model based on the Hata formulae adding a diffraction term calculated using the Deygout method and COST 231 Walfisch-Ikegami model. The performance of the models is evaluated with measurement campaigns from several scenarios with different conditions such as transmitter height, environment, and available geographical data. Finally, location variability is studied as a key parameter to achieve an efficient network dimensioning.References
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Okumura, Y., Ohmori, E., Kawano, T., & Fukuda, K. (1968, Septiembre-Octubre). Field strength and its variability in VHF and UHF land-mobile service. Review of the Electrical Communication Laboratory, 16(9-10), 825-873.
Plets, D., Joseph, W., Tanghe, E., Verloock, L. & Martens, L. (2007). Analysis of propagation of actual DVB-H signal in suburban environment. Proceedings of the 2nd European Conference on AP. Edinburgh, UK.
Xia, H.H. & Bertoni, H.L. (1992). Diffraction of cylindrical and plane waves by an Array of absorbing half-screens. IEEE Transactions on Antennas and Propagation, 40(2), 170-177.
Damosso, E. (Ed.). (1999). Digital mobile radio: COST 231 View on the evolution towards 3rd generation systems. Bruselas (Bélgica): Commission of the European Communities and COST Telecommunications.
Deygout, J. (1966). Multiple knife edge diffraction of microwaves. IEEE Transactions on Antennas and Propagation, 14, 825-873.
European Telecommunications Standard Institute [ETSI], (2008, Octubre). Digital video broadcasting (DVB); Implementation guidelines for DVB terrestrial services; Transmission aspects. ETSI TR 101 190 V1.3.1 (Technical report). Sophia Antípolis ,Francia: Autor.
ETSI (2009, Junio). Digital video broadcasting (DVB); DVB-H Implementation guidelines. ETSI TR 102 377 V1.4.1 (Technical report). Sophia Antípolis, Francia: autor.
García, A.P., Ortega. H., Navarro, A., & Rodríguez, A. (2003) Estudio del modelo de propagación Walfisch-Ikegami y su desempeño en la banda TDMA colombiana en presencia de relieve, mediante la utilización de una herramienta de planificación celular basada en GIS, Revista S&T, 1(1), 13-33.
Gómez-Barquero, D., Bria, A., Monserrat, J. F. & Cardona, N. (2006, Septiembre). Minimal cost planning of DVB-H networks on existing wireless infrastructure. Proceedings, IEEE PIMRC. Helsinki, Finlandia.
ITU-R (2009). Method for point-to-area predictions for terrestrial services in the frequency range 30 MHz to 3000 MHz (Recommendation ITU-R P.1546). Ginebra, Suiza: Autor.
Moon, T.K. & Stirling, W.C. (2000). Mathematical methods and algorithms for signal processing. Upper Saddle River (NJ): Prentice-Hall.
Okumura, Y., Ohmori, E., Kawano, T., & Fukuda, K. (1968, Septiembre-Octubre). Field strength and its variability in VHF and UHF land-mobile service. Review of the Electrical Communication Laboratory, 16(9-10), 825-873.
Plets, D., Joseph, W., Tanghe, E., Verloock, L. & Martens, L. (2007). Analysis of propagation of actual DVB-H signal in suburban environment. Proceedings of the 2nd European Conference on AP. Edinburgh, UK.
Xia, H.H. & Bertoni, H.L. (1992). Diffraction of cylindrical and plane waves by an Array of absorbing half-screens. IEEE Transactions on Antennas and Propagation, 40(2), 170-177.
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2011-09-30
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