Performance of IEEE802.15.4e TSCH Protocol for Multi-hop Wireless Sensor Networks

In order to cope with a large multi-hop resource forced and IPv6 consistent Low-power and Lossy Networks (LLNs), based on IEEE802.15.4 radios, new protocols have been standardized within the IETF. Time Slotted Channel Hopping (TSCH) is part of the new defined IEEE 802.15.4e standard and represents the latest generation of highly reliable low power MAC protocols. It uses the node synchronization to achieve low power operations and obtain energy efficient by minimizing contention. It uses channel hopping to increase reliability since gaining in frequency diversity. To embed this powerful new MAC under the framework of IPv6 based LLN protocols, a new IETF working group has been defined, namely IPv6 over the TSCH mode of IEEE 802.15.4e work group (6TiSCH WG). In this paper, we define the protocol layers evolution of the communication stack. We compare IEEE 802.15.4 and IEEE 802.15.4e performances to show the reliability of the new protocol in ensuring a wide range of optimal Internet Of Things (IoT) applications in industrial environments.