Application of multiple interfaces for balanced tree routing in low-delay convergecast under IEEE 802.15.4e TSCH M2M networks

Delay time has been a key factor to consider in many real-time wireless applications, especially in industrial applications that the new TSCH mode proposed in IEEE 802.15.4e targets. Existing methods focus on minimizing the use of communication resources, yet they are unable to exploit the availability of channel multiplicity for achieving shorter average delay time in TSCH networks. In this paper, we propose a new method to construct cost-balanced routing trees that can utilize multiple interfaces at the coordinator. Our simulation results show that the proposed method is able to achieve low-delay data collection in TSCH networks.