Enhanced Time Slotted Channel Scheduling for Constrained Networks

Abstract

Recent years show the rapid adoption of Industrial Internet of Things (IIoT) technologies in automation and manufacturing. The IEEE 802.15.4e has evolved the industry in many different ways. Its time synchronization and channel hopping techniques are crucial for reliable operations in resource-constrained networks. With the advent of the 6TiSCH, it became feasible to connect industrial operational technology with an IPv6 network. It enabled determinism and quality of service in IIoT. Several 6TiSCH scheduling functions are being developed, optimizing different performance metrics. Network traffic and topology are the challenges in designing an efficient schedule. In this paper, the performance of the traffic-aware schedule has been analysed under different network scenarios. This technique designs a slotframe by considering the node's location and the traffic condition in the network. The result shows that the end-to-end latency in this technique is reduced up to 14% with similar throughput compared to the existing techniques.