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http://dx.doi.org/10.5573/ieie.2017.54.8.3

An Analysis of Packet Collision Probability due to Inter-piconet Interference in the Bluetooth Low Energy Networks  

Kim, Myoung Jin (Dept. of Information and Communications Eng., Hankuk University of Foreign Studies)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.54, no.8, 2017 , pp. 3-11 More about this Journal
Abstract
Research and development are being conducted to apply low-power Bluetooth (BLE) technology to IoT (Internet of Things) applications. The characteristic of this application environment is that many piconets can operate in the same space. Therefore, interference between homogeneous networks is likely to occur. In the BLE data channel, adaptive frequency hopping (AFH) scheme is used among the 37 frequency channels, and the master and the slave communicate while changing the carrier frequency. If there are multiple BLE piconets in the same space, there is a risk of frequency collision and packet errors will occur. In this paper, we analyze the packet collision probability due to cochannel interference in multiple asynchronous BLE piconet environments. Specifically, we analyzed packet collision probability according to the number of concurrently operating BLE piconets with the ratio of connection interval to connection event length as the main parameters. The analysis result can be used to set connection event related parameters for a desired packet collision probability according to the number of users having BLE devices in a given space.
Keywords
Bluetooth Low Energy(BLE); piconet; packet error rate; aggregate throughput; cochannel interference;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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