Performance evaluation of IoT mesh networking technology in ISM frequency band

The paper deals with a performance evaluation and stress-testing of IoT (Internet of Things) based networks operating at 868 MHz ISM (Industrial, Science, Medical) frequencies. The importance of this specific ISM frequency band is increasing over the time as it is utilized by data acquisition from increasing number of sensors in IoT, industrial automation and logistics segment. As the number of network devices in ISM frequency band is rapidly increasing, the identification of technology limits is crucial for future deployment of IoT networks in areas with a high interference potential. The interference is the main cause of the degradation in communication stability among IoT devices and decreasing QoS (Quality of Service). It is necessary to know the limits of deployed IoT network technology under optimal and sub-optimal conditions. Only the monitoring of network along with knowledge of exact limits specific for the network can ensure a certain level of provided services.