Comparative Performance Analysis Of Different Radio Channel Modelling For Bluetooth Localization System

This paper studied the possibility in a Bluetooth network of using channel simulated results as alternatives to on-site measurements and compares the average localization error as a function of a radio map resolution for the free-space path loss wall Attenuation Factor and Ray-Tracer (RT) models. Three reference radio maps were generated; one for each model. The Nearest Neighbour (NN) RSS based localization algorithm was used in this work. This algorithm was applied to the three models with different number of reference points. Results obtained show that RT proved to be more robust technique, especially for grid resolution greater than 10 meters. The simulation results using RT software in these situations is very close to the on-site results. On the other hand, the WAF model produced results that are very close to the on-site results for grid resolution less than 8 meters.