Indoor Propagation of Bluetooth Waves, Effect of Distance on Bluetooth Data Transmission, and Simulation of Wave Propagation

This paper describes a study of how 2.45GHz electromagnetic waves propagate indoors. 2.45GHz is a typical Bluetooth frequency. Propagation models with both one and several transmitters have been made using an advanced computer program. Furthermore, a model of the propagation of 433MHz radio waves has been made and used as a standard point of comparison. To make sure that such models are reliable the study was renewed using a real 2.45GHz transmitter and receiver and then comparing the results to those given by one of the propagation models. In addition, the results of a study of Bluetooth traffic have been compared to the outcome of a propagation model created to represent a similar situation. Finally, the suitability of Bluetooth for indoor use is discussed. Key-Words: Bluetooth, propagation model, receiver sensitivity, data transmission, packet retransmission