Applying FDTD to the Coverage Prediction of WiMAX Femtocells

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Executive Summary

Femtocells, or home base stations, are a potential future solution for operators to increase indoor coverage and reduce network cost. In a real WiMAX femtocell deployment in residential areas covered by WiMAX macrocells, interference is very likely to occur both in the streets and certain indoor regions. Propagation models that take into account both the outdoor and indoor channel characteristics are thus necessary for the purpose of WiMAX network planning in the presence of femtocells. In this paper, the Finite-Difference Time-Domain (FDTD) method is adapted for the computation of radio-wave propagation predictions at WiMAX frequencies.

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