PREDICTION OF AVERAGE POWER DISTRIBUTION IN INDOOR WIRELESS COMMUNICATIONS BY USING RAY-TRACING TECHNIQUE

Tóm tắt

The design of indoor wireless communication networks requires the prediction of average power distribution inside a building. Radio propagation inside a building is complex because each building wall can act both as an obstruction attenuating a propagation path, and as a mirror providing an additional path. The measurement techniques are normally high costs and time consuming. The prediction techniques based on the numerical calculation of electromagnetic field overcome the disadvantages of measurement techniques while providing high accuracy and being suitable for practical applications of cell planning and cell re-planning issues. The ray-tracing technique, which speeds up the computation while maintaining the reasonable accuracy, is an appropriate selection. In this paper, we develop a software program for predicting distribution of average power in indoor wireless communications based on ray-tracing technique. The efficiency of the proposed software program is shown in numerical results and is verified by measurement results