Abstract

Bluetooth Low Energy (BLE) is a ubiquitous technology allowing applications in healthcare, wellness and house-hold sensors to have wireless functionality. Even though a frequency hopping mechanism is employed by BLE to combat fading and interference in the 2.4 GHz Industrial, Scientific and Medical (ISM) band, a noticeable probability of collision is expected to arise when the number of communicating BLE devices in the same vicinity increases. In this paper, an analytical model to find the selection probability of each of the 37 BLE data channels is presented. The results, which are confirmed by brute-force simulation, are then used to find the probability of collision between collocated BLE pairs and their maximum achievable aggregate throughput.

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