Naslov
A Site-Specific Model for Propagation Prediction in Indoor Wireless Communications

Autori
Vilović, Ivan ; Robert, Nađ ; Nikša Burum

Izvornik
Naše more : znanstveni časopis za more i pomorstvo (0469-6255) 56 (2009), 5-6; 202-212

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Neural network; Indoor wireless communications; reflection coefficients; complex dielectric constant

Sažetak
Indoor wireless communications transport the vast information capacity use millimetre wave frequency band. Accurate characterization of the propagation channel is an important requirement for design and implementation of a local area network inside buildings. A tool for prediction of electromagnetic filed strength in indoor communications is presented. A 3D ray tracing model is developed based on accurate electromagnetic theories that incorporate polarization characteristics. Propagation mechanisms for reflection and transmission are included in the model. The developed software enables prediction of the signal strength at any receiving point of the specific indoor environment. This deterministic model is compared with Motley-Keenan model. The obtained results from both models are compared with measured data. The ray tracing model is used with measured electromagnetic parameters. Non-destructive free space measurement method for the measurement of complex dielectric constant of the walls and other obstacles is used. The accuracy of the model enables usage of it for characterization a typical indoor environment for performance evaluation of wireless local area network.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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