Discovery and delay analysis of bluetooth devices

In Bluetooth network environment, device discovery is achieved by the master running the Inquiry protocol and slaves running the Inquiry Scan protocol. The master and a slave establish a connection using the Page and Page Scan protocols, respectively. Once a connection Is established between a master and a slave, upper level data can be exchanged between the two devices. Thus, device discovery and connection establishment are fundamental to communication between two Bluetooth devices. While a device Is In the process of discovering other devices, there Is a random delay. We analyze the discovery time for different situations. We further show the delay-distribution for varied number of devices. We explain reasons of occasional long discovery time, and propose means to Improve It.