Enhanced Simulation Framework for visualization of ZigBee frame in the sensor network

What is it about?

This paper presents a simulation product for researching the quality of service (QoS) in the ZigBee network and visualising the contents of the IEEE 802.15.4 frame.

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Why is it important?

This paper presents a simulation framework with a responsive and easy to use open source graphical user interface for the ZigBee sensor network. Improvements to the simulation framework allow simulating a specific situation in a particular area in the world, as well as presenting the content of the IEEE 802.15.4 frame, examining RSS and RSSI values, prioritising network traffic and exploring parameters affecting to QoS such as PDR, PLR, Delay and Throughput. The results for static nodes from the tests performed show that the LNHF algorithm improves the QoS for end nodes, at a distance of up to 7m from the serving device. This will speed up the work, as the interference at these nodes is less, because the signal from the coordinator is better, respectively packet retransmissions will be less. Accelerated service of requests from higher-priority devices leads to faster release of resources from them, which can assign to lower-priority nodes. This in turn also improves the QoS. The results for mobile nodes from the tests performed show that for both algorithms the obtained values are identical and uncertain, regardless of the speed of movement.

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