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BlueTooth Low Energy (BT LE) is a low power air interface technology recently released by the BlueTooth Special Interest Group (BT SIG). As a promising radio, BT LE realizes many designing features to fulfill foreseeable requirements of short range communication, such as fast device discovery, power saving transmitting, encryption and authentication, etc. In this paper, the authors focus on the modeling and performance analyzing of the device discovery process in BT LE networks. A general model for device discovery on multi-channel is proposed primarily, which is then tailored and simplified for the BT LE case, where three broadcasting channels are used.
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