Accuracy evaluation analysis for indoor measurement-based radio-wave-propagation predictions

Abstract

An accuracy evaluation analysis of in-building path loss prediction models is presented, comparing the performance of measurement-based prediction against traditional indoor radio propagation models, such as Keenan–Motley, tuned with measurements. The analysis was conducted using extensive walk test data from various antennas at 1800 MHz collected in two types of buildings: an old Victorian manor-house built from brick and a modern purpose-built office building with open-plan construction. The measured data were split into two parts: a tuning set and an evaluation set, such that the data used to run the measurement-based prediction were excluded from the data used for the accuracy evaluation analysis. The results show a significant improvement in the prediction accuracy for the indoor measurement-based model over the tuned Keenan–Motley model.